phpliteadmin.php

<?php

//
//  Project: phpLiteAdmin (http://phpliteadmin.googlecode.com)
//  Version: 1.8.8
//  Summary: PHP-based admin tool to manage SQLite2 and SQLite3 databases on the web
//  Last updated: 10/19/11
//  Developers:
//     Dane Iracleous (daneiracleous@gmail.com)
//     Ian Aldrighetti (ian.aldrighetti@gmail.com)
//     George Flanagin & Digital Gaslight, Inc (george@digitalgaslight.com)
//
//
//  Copyright (C) 2011  phpLiteAdmin
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
///////////////////////////////////////////////////////////////////////////


//please report any bugs you encounter to http://code.google.com/p/phpliteadmin/issues/list

//password to gain access (change this to something more secure than 'admin')
$password = "admin";

//directory relative to this file to search for SQLite databases (if false, manually list databases below)
$directory = ".";

//whether or not (true or false) to scan the subdirectories of the above directory infinitely deep
$subdirectories = false;

//if the above $directory variable is set to false, you must specify the databases manually in an array as the next variable
//if any of the databases do not exist as they are referenced by their path, they will be created automatically if possible
$databases = array
(
	array
	(
		"path"=> "database1.sqlite",
		"name"=> "Database 1"
	),
	array
	(
		"path"=> "database2.sqlite",
		"name"=> "Database 2"
	)
);

// What should the name of the cookie be which contains the current password?
// Changing this allows multiple phpLiteAdmin installs to work under the same domain.
$cookie_name = 'pla3412';

//end of the variables you may need to edit

session_start(); //don't mess with this - required for the login session
date_default_timezone_set(date_default_timezone_get()); //needed to fix STRICT warnings about timezone issues

//toggle error reporting
ini_set("display_errors", 1);
error_reporting(E_STRICT | E_ALL);

$startTimeTot = microtime(true); //start the timer to record page load time

//the salt and password encrypting is probably unnecessary protection but is done just for the sake of being very secure
//create a random salt for this session if a cookie doesn't already exist for it
if(!isset($_SESSION[$cookie_name.'_salt']) && !isset($_COOKIE[$cookie_name.'_salt']))
{
	$n = rand(10e16, 10e20);
	$_SESSION[$cookie_name.'_salt'] = base_convert($n, 10, 36);
}
else if(!isset($_SESSION[$cookie_name.'_salt']) && isset($_COOKIE[$cookie_name.'_salt'])) //session doesn't exist, but cookie does so grab it
{
	$_SESSION[$cookie_name.'_salt'] = $_COOKIE[$cookie_name.'_salt'];
}

//build the basename of this file for later reference
$info = pathinfo($_SERVER['PHP_SELF']);
$thisName = $info['basename'];

//constants
define("PROJECT", "phpLiteAdmin");
define("VERSION", "1.8.8");
define("PAGE", $thisName);
define("COOKIENAME", $cookie_name);
define("SYSTEMPASSWORD", $password); // Makes things easier.
define("SYSTEMPASSWORDENCRYPTED", md5($password."_".$_SESSION[$cookie_name.'_salt'])); //extra security - salted and encrypted password used for checking
define("FORCETYPE", false); //force the extension that will be used (set to false in almost all circumstances except debugging)

//data types array
$types = array("INTEGER", "REAL", "TEXT", "BLOB");
define("DATATYPES", serialize($types));

//available SQLite functions array
$functions = array("abs", "date", "datetime", "hex", "julianday", "length", "lower", "ltrim", "random", "round", "rtrim", "soundex", "time", "trim", "typeof", "upper");
define("FUNCTIONS", serialize($functions));

//function to scan entire directory tree and subdirectories
function dir_tree($dir)
{
	$path = '';
	$stack[] = $dir;
	while($stack)
	{
		$thisdir = array_pop($stack);
		if($dircont = scandir($thisdir))
		{
			$i=0;
			while(isset($dircont[$i]))
			{
				if($dircont[$i] !== '.' && $dircont[$i] !== '..')
				{
					$current_file = "{$thisdir}/{$dircont[$i]}";
					if(is_file($current_file))
					{
						$path[] = "{$thisdir}/{$dircont[$i]}";
					}
					elseif (is_dir($current_file))
					{
						$path[] = "{$thisdir}/{$dircont[$i]}";
						$stack[] = $current_file;
					}
				}
				$i++;
			}
		}
	}
	return $path;
}

//if the user wants to scan a directory for databases, do so
if($directory!==false)
{
	if($directory[strlen($directory)-1]=="/") //if user has a trailing slash in the directory, remove it
		$directory = substr($directory, 0, strlen($directory)-1);
		
	if(is_dir($directory)) //make sure the directory is valid
	{
		if($subdirectories===true)
			$arr = dir_tree($directory);
		else
			$arr = scandir($directory);
		$databases = array();
		$j = 0;
		for($i=0; $i<sizeof($arr); $i++) //iterate through all the files in the databases
		{
			$file = pathinfo($arr[$i]);
			if(isset($file['extension']))
			{
				$ext = strtolower($file['extension']);
				if($ext=="sqlite" || $ext=="db" || $ext=="sqlite3" || $ext=="db3") //make sure the file is a valid SQLite database by checking its extension
				{
					if($subdirectories===true)
						$databases[$j]['path'] = $arr[$i];
					else
						$databases[$j]['path'] = $directory."/".$arr[$i];
					$databases[$j]['name'] = $arr[$i];
					// 22 August 2011: gkf fixed bug 49.
					$perms = 0;
					$perms += is_readable($databases[$j]['path']) ? 4 : 0;
					$perms += is_writeable($databases[$j]['path']) ? 2 : 0;
					switch($perms)
					{
						case 6: $perms = "[rw] "; break;
						case 4: $perms = "[r ] "; break;
						case 2: $perms = "[ w] "; break; // God forbid, but it might happen.
						default: $perms = "[  ] "; break;
					}
					$databases[$j]['perms'] = $perms;
					$j++;
				}
			}
		}
		// 22 August 2011: gkf fixed bug #50.
		sort($databases);
	}
	else //the directory is not valid - display error and exit
	{
		echo "<div class='confirm' style='margin:20px;'>";
		echo "The directory you specified to scan for databases does not exist or is not a directory.";
		echo "</div>";
		exit();
	}
}

// 22 August 2011: gkf added this function to support display of
//                 default values in the form used to INSERT new data.
function deQuoteSQL($s)
{
	return trim(trim($s), "'");
}

//
// Authorization class
// Maintains user's logged-in state and security of application
//
class Authorization
{
	public function grant($remember)
	{
		if($remember) //user wants to be remembered, so set a cookie
		{
			$expire = time()+60*60*24*30; //set expiration to 1 month from now
			setcookie(COOKIENAME, SYSTEMPASSWORD, $expire);
			setcookie(COOKIENAME."_salt", $_SESSION[COOKIENAME.'_salt'], $expire);
		}
		else
		{
			//user does not want to be remembered, so destroy any potential cookies
			setcookie(COOKIENAME, "", time()-86400);
			setcookie(COOKIENAME."_salt", "", time()-86400);
			unset($_COOKIE[COOKIENAME]);
			unset($_COOKIE[COOKIENAME.'_salt']);
		}

		$_SESSION[COOKIENAME.'password'] = SYSTEMPASSWORDENCRYPTED;
	}
	public function revoke()
	{
		//destroy everything - cookies and session vars
		setcookie(COOKIENAME, "", time()-86400);
		setcookie(COOKIENAME."_salt", "", time()-86400);
		unset($_COOKIE[COOKIENAME]);
		unset($_COOKIE[COOKIENAME.'_salt']);
		session_unset();
		session_destroy();
	}
	public function isAuthorized()
	{
		// Is this just session long? (What!?? -DI)
		if((isset($_SESSION[COOKIENAME.'password']) && $_SESSION[COOKIENAME.'password'] == SYSTEMPASSWORDENCRYPTED) || (isset($_COOKIE[COOKIENAME]) && isset($_COOKIE[COOKIENAME.'_salt']) && md5($_COOKIE[COOKIENAME]."_".$_COOKIE[COOKIENAME.'_salt']) == SYSTEMPASSWORDENCRYPTED))
			return true;
		else
		{
			return false;
		}
	}
}

//
// Database class
// Generic database abstraction class to manage interaction with database without worrying about SQLite vs. PHP versions
//
class Database
{
	protected $db; //reference to the DB object
	protected $type; //the extension for PHP that handles SQLite
	protected $data;
	protected $lastResult;

	public function __construct($data)
	{
		$this->data = $data;
		try
		{
			if(file_exists($this->data["path"]) && !is_writable($this->data["path"])) //make sure the actual database file is writable
			{
				echo "<div class='confirm' style='margin:20px;'>";
				echo "The database, '".$this->data["path"]."', is not writable. The application is unusable until you make it writable.";
				echo "<form action='".PAGE."' method='post'/>";
				echo "<input type='submit' value='Log Out' name='logout' class='btn'/>";
				echo "</form>";
				echo "</div><br/>";
				exit();
			}

			if(!file_exists($this->data["path"]) && !is_writable(dirname($this->data["path"]))) //make sure the containing directory is writable if the database does not exist
			{
				echo "<div class='confirm' style='margin:20px;'>";
				echo "The database, '".$this->data["path"]."', does not exist and cannot be created because the containing directory, '".dirname($this->data["path"])."', is not writable. The application is unusable until you make it writable.";
				echo "<form action='".PAGE."' method='post'/>";
				echo "<input type='submit' value='Log Out' name='logout' class='btn'/>";
				echo "</form>";
				echo "</div><br/>";
				exit();
			}

			$ver = $this->getVersion();

			switch(true)
			{
				case (FORCETYPE=="PDO" || ((FORCETYPE==false || $ver!=-1) && class_exists("PDO") && ($ver==-1 || $ver==3))):
					$this->db = new PDO("sqlite:".$this->data['path']);
					if($this->db!=NULL)
					{
						$this->type = "PDO";
						break;
					}
				case (FORCETYPE=="SQLite3" || ((FORCETYPE==false || $ver!=-1) && class_exists("SQLite3") && ($ver==-1 || $ver==3))):
					$this->db = new SQLite3($this->data['path']);
					if($this->db!=NULL)
					{
						$this->type = "SQLite3";
						break;
					}
				case (FORCETYPE=="SQLiteDatabase" || ((FORCETYPE==false || $ver!=-1) && class_exists("SQLiteDatabase") && ($ver==-1 || $ver==2))):
					$this->db = new SQLiteDatabase($this->data['path']);
					if($this->db!=NULL)
					{
						$this->type = "SQLiteDatabase";
						break;
					}
				default:
					$this->showError();
					exit();
			}
		}
		catch(Exception $e)
		{
			$this->showError();
			exit();
		}
	}

	public function showError()
	{
		$classPDO = class_exists("PDO");
		$classSQLite3 = class_exists("SQLite3");
		$classSQLiteDatabase = class_exists("SQLiteDatabase");
		if($classPDO)
			$strPDO = "installed";
		else
			$strPDO = "not installed";
		if($classSQLite3)
			$strSQLite3 = "installed";
		else
			$strSQLite3 = "not installed";
		if($classSQLiteDatabase)
			$strSQLiteDatabase = "installed";
		else
			$strSQLiteDatabase = "not installed";
		echo "<div class='confirm' style='margin:20px;'>";
		echo "There was a problem setting up your database, ".$this->getPath().". An attempt will be made to find out what's going on so you can fix the problem more easily.<br/><br/>";
		echo "<i>Checking supported SQLite PHP extensions...<br/><br/>";
		echo "<b>PDO</b>: ".$strPDO."<br/>";
		echo "<b>SQLite3</b>: ".$strSQLite3."<br/>";
		echo "<b>SQLiteDatabase</b>: ".$strSQLiteDatabase."<br/><br/>...done.</i><br/><br/>";
		if(!$classPDO && !$classSQLite3 && !$classSQLiteDatabase)
			echo "It appears that none of the supported SQLite library extensions are available in your installation of PHP. You may not use ".PROJECT." until you install at least one of them.";
		else
		{
			if(!$classPDO && !$classSQLite3 && $this->getVersion()==3)
				echo "It appears that your database is of SQLite version 3 but your installation of PHP does not contain the necessary extensions to handle this version. To fix the problem, either delete the database and allow ".PROJECT." to create it automatically or recreate it manually as SQLite version 2.";
			else if(!$classSQLiteDatabase && $this->getVersion()==2)
				echo "It appears that your database is of SQLite version 2 but your installation of PHP does not contain the necessary extensions to handle this version. To fix the problem, either delete the database and allow ".PROJECT." to create it automatically or recreate it manually as SQLite version 3.";
			else
				echo "The problem cannot be diagnosed properly. Please email me at daneiracleous@gmail.com with your database as an attachment and the contents of this error message. It may be that your database is simply not a valid SQLite database, but this is not certain.";
		}
		echo "</div><br/>";
	}

	public function __destruct()
	{
		if($this->db)
			$this->close();
	}

	//get the exact PHP extension being used for SQLite
	public function getType()
	{
		return $this->type;
	}

	//get the name of the database
	public function getName()
	{
		return $this->data["name"];
	}

	//get the filename of the database
	public function getPath()
	{
		return $this->data["path"];
	}

	//get the version of the database
	public function getVersion()
	{
		if(file_exists($this->data['path'])) //make sure file exists before getting its contents
		{
			$content = strtolower(file_get_contents($this->data['path'], NULL, NULL, 0, 40)); //get the first 40 characters of the database file
			$p = strpos($content, "** this file contains an sqlite 2"); //this text is at the beginning of every SQLite2 database
			if($p!==false) //the text is found - this is version 2
				return 2;
			else
				return 3;
		}
		else //return -1 to indicate that it does not exist and needs to be created
		{
			return -1;
		}
	}

	//get the size of the database
	public function getSize()
	{
		return round(filesize($this->data["path"])*0.0009765625, 1)." Kb";
	}

	//get the last modified time of database
	public function getDate()
	{
		return date("g:ia \o\\n F j, Y", filemtime($this->data["path"]));
	}

	//get number of affected rows from last query
	public function getAffectedRows()
	{
		if($this->type=="PDO")
			return $this->lastResult->rowCount();
		else if($this->type=="SQLite3")
			return $this->db->changes();
		else if($this->type=="SQLiteDatabase")
			return $this->db->changes();
	}

	public function close()
	{
		if($this->type=="PDO")
			$this->db = NULL;
		else if($this->type=="SQLite3")
			$this->db->close();
		else if($this->type=="SQLiteDatabase")
			$this->db = NULL;
	}

	public function beginTransaction()
	{
		$this->query("BEGIN");
	}

	public function commitTransaction()
	{
		$this->query("COMMIT");
	}

	public function rollbackTransaction()
	{
		$this->query("ROLLBACK");
	}

	//generic query wrapper
	public function query($query, $ignoreAlterCase=false)
	{
		if(strtolower(substr(ltrim($query),0,5))=='alter' && $ignoreAlterCase==false) //this query is an ALTER query - call the necessary function
		{
			$queryparts = preg_split("/[\s]+/", $query, 4, PREG_SPLIT_NO_EMPTY);
			$tablename = $queryparts[2];
			$alterdefs = $queryparts[3];
			//echo $query;
			$result = $this->alterTable($tablename, $alterdefs);
		}
		else //this query is normal - proceed as normal
			$result = $this->db->query($query);
		if(!$result)
			return NULL;
		$this->lastResult = $result;
		return $result;
	}

	//wrapper for an INSERT and returns the ID of the inserted row
	public function insert($query)
	{
		$result = $this->query($query);
		if($this->type=="PDO")
			return $this->db->lastInsertId();
		else if($this->type=="SQLite3")
			return $this->db->lastInsertRowID();
		else if($this->type=="SQLiteDatabase")
			return $this->db->lastInsertRowid();
	}

	//returns an array for SELECT
	public function select($query, $mode="both")
	{
		$result = $this->query($query);
		if(!$result) //make sure the result is valid
			return NULL;
		if($this->type=="PDO")
		{
			if($mode=="assoc")
				$mode = PDO::FETCH_ASSOC;
			else if($mode=="num")
				$mode = PDO::FETCH_NUM;
			else
				$mode = PDO::FETCH_BOTH;
			return $result->fetch($mode);
		}
		else if($this->type=="SQLite3")
		{
			if($mode=="assoc")
				$mode = SQLITE3_ASSOC;
			else if($mode=="num")
				$mode = SQLITE3_NUM;
			else
				$mode = SQLITE3_BOTH;
			return $result->fetchArray($mode);
		}
		else if($this->type=="SQLiteDatabase")
		{
			if($mode=="assoc")
				$mode = SQLITE_ASSOC;
			else if($mode=="num")
				$mode = SQLITE_NUM;
			else
				$mode = SQLITE_BOTH;
			return $result->fetch($mode);
		}
	}

	//returns an array of arrays after doing a SELECT
	public function selectArray($query, $mode="both")
	{
		$result = $this->query($query);
		if(!$result) //make sure the result is valid
			return NULL;
		if($this->type=="PDO")
		{
			if($mode=="assoc")
				$mode = PDO::FETCH_ASSOC;
			else if($mode=="num")
				$mode = PDO::FETCH_NUM;
			else
				$mode = PDO::FETCH_BOTH;
			return $result->fetchAll($mode);
		}
		else if($this->type=="SQLite3")
		{
			if($mode=="assoc")
				$mode = SQLITE3_ASSOC;
			else if($mode=="num")
				$mode = SQLITE3_NUM;
			else
				$mode = SQLITE3_BOTH;
			$arr = array();
			$i = 0;
			while($res = $result->fetchArray($mode))
			{
				$arr[$i] = $res;
				$i++;
			}
			return $arr;
		}
		else if($this->type=="SQLiteDatabase")
		{
			if($mode=="assoc")
				$mode = SQLITE_ASSOC;
			else if($mode=="num")
				$mode = SQLITE_NUM;
			else
				$mode = SQLITE_BOTH;
			return $result->fetchAll($mode);
		}
	}

	//function that is called for an alter table statement in a query
	//code borrowed with permission from http://code.jenseng.com/db/
	public function alterTable($table, $alterdefs)
	{
		if($alterdefs != '')
		{
			$tempQuery = "SELECT sql,name,type FROM sqlite_master WHERE tbl_name = '".$table."' ORDER BY type DESC";
			$result = $this->query($tempQuery);
			$resultArr = $this->selectArray($tempQuery);

			if(sizeof($resultArr)>0)
			{
				$row = $this->select($tempQuery); //table sql
				$tmpname = 't'.time();
				$origsql = trim(preg_replace("/[\s]+/", " ", str_replace(",", ", ",preg_replace("/[\(]/", "( ", $row['sql'], 1))));
				$createtemptableSQL = 'CREATE TEMPORARY '.substr(trim(preg_replace("'".$table."'", $tmpname, $origsql, 1)), 6);
				$createindexsql = array();
				$i = 0;
				$defs = preg_split("/[,]+/",$alterdefs, -1, PREG_SPLIT_NO_EMPTY);
				$prevword = $table;
				$oldcols = preg_split("/[,]+/", substr(trim($createtemptableSQL), strpos(trim($createtemptableSQL), '(')+1), -1, PREG_SPLIT_NO_EMPTY);
				$newcols = array();
				for($i=0; $i<sizeof($oldcols); $i++)
				{
					$colparts = preg_split("/[\s]+/", $oldcols[$i], -1, PREG_SPLIT_NO_EMPTY);
					$oldcols[$i] = $colparts[0];
					$newcols[$colparts[0]] = $colparts[0];
				}
				$newcolumns = '';
				$oldcolumns = '';
				reset($newcols);
				while(list($key, $val) = each($newcols))
				{
					$newcolumns .= ($newcolumns?', ':'').$val;
					$oldcolumns .= ($oldcolumns?', ':'').$key;
				}
				$copytotempsql = 'INSERT INTO '.$tmpname.'('.$newcolumns.') SELECT '.$oldcolumns.' FROM '.$table;
				$dropoldsql = 'DROP TABLE '.$table;
				$createtesttableSQL = $createtemptableSQL;
				foreach($defs as $def)
				{
					$defparts = preg_split("/[\s]+/", $def,-1, PREG_SPLIT_NO_EMPTY);
					$action = strtolower($defparts[0]);
					switch($action)
					{
						case 'add':
							if(sizeof($defparts) <= 2)
								return false;
							$createtesttableSQL = substr($createtesttableSQL, 0, strlen($createtesttableSQL)-1).',';
							for($i=1;$i<sizeof($defparts);$i++)
								$createtesttableSQL.=' '.$defparts[$i];
							$createtesttableSQL.=')';
							break;
						case 'change':
							if(sizeof($defparts) <= 3)
							{
								return false;
							}
							if($severpos = strpos($createtesttableSQL,' '.$defparts[1].' '))
							{
								if($newcols[$defparts[1]] != $defparts[1])
									return false;
								$newcols[$defparts[1]] = $defparts[2];
								$nextcommapos = strpos($createtesttableSQL,',',$severpos);
								$insertval = '';
								for($i=2;$i<sizeof($defparts);$i++)
									$insertval.=' '.$defparts[$i];
								if($nextcommapos)
									$createtesttableSQL = substr($createtesttableSQL,0,$severpos).$insertval.substr($createtesttableSQL,$nextcommapos);
								else
									$createtesttableSQL = substr($createtesttableSQL,0,$severpos-(strpos($createtesttableSQL,',')?0:1)).$insertval.')';
							}
							else
								return false;
							break;
						case 'drop':
							if(sizeof($defparts) < 2)
								return false;
							if($severpos = strpos($createtesttableSQL,' '.$defparts[1].' '))
							{
								$nextcommapos = strpos($createtesttableSQL,',',$severpos);
								if($nextcommapos)
									$createtesttableSQL = substr($createtesttableSQL,0,$severpos).substr($createtesttableSQL,$nextcommapos + 1);
								else
									$createtesttableSQL = substr($createtesttableSQL,0,$severpos-(strpos($createtesttableSQL,',')?0:1) - 1).')';
								unset($newcols[$defparts[1]]);
							}
							else
								return false;
							break;
						default:
							return false;
					}
					$prevword = $defparts[sizeof($defparts)-1];
				}
				//this block of code generates a test table simply to verify that the columns specifed are valid in an sql statement
				//this ensures that no reserved words are used as columns, for example
				$tempResult = $this->query($createtesttableSQL);
				if(!$tempResult)
					return false;
				$droptempsql = 'DROP TABLE '.$tmpname;
				$tempResult = $this->query($droptempsql);
				//end block

				$createnewtableSQL = 'CREATE '.substr(trim(preg_replace("'".$tmpname."'", $table, $createtesttableSQL, 1)), 17);
				$newcolumns = '';
				$oldcolumns = '';
				reset($newcols);
				while(list($key,$val) = each($newcols))
				{
					$newcolumns .= ($newcolumns?', ':'').$val;
					$oldcolumns .= ($oldcolumns?', ':'').$key;
				}
				$copytonewsql = 'INSERT INTO '.$table.'('.$newcolumns.') SELECT '.$oldcolumns.' FROM '.$tmpname;

				$this->query($createtemptableSQL); //create temp table
				$this->query($copytotempsql); //copy to table
				$this->query($dropoldsql); //drop old table

				$this->query($createnewtableSQL); //recreate original table
				$this->query($copytonewsql); //copy back to original table
				$this->query($droptempsql); //drop temp table
			}
			else
			{
				return false;
			}
			return true;
		}
	}

	//multiple query execution
	public function multiQuery($query)
	{
		if($this->type=="PDO")
		{
			$success = $this->db->exec($query, $error);
		}
		else if($this->type=="SQLite3")
		{
			$success = $this->db->exec($query, $error);
		}
		else
		{
			$success = $this->db->queryExec($query, $error);
		}
		if(!$success)
		{
			return "Error in query: '".$error."'";
		}
		else
		{
			return true;	
		}
	}

	//get number of rows in table
	public function numRows($table)
	{
		$result = $this->select("SELECT Count(*) FROM ".$table);
		return $result[0];
	}

	//correctly escape a string to be injected into an SQL query
	public function quote($value)
	{
		if($this->type=="PDO")
		{
			return $this->db->quote($value);
		}
		else if($this->type=="SQLite3")
		{
			return $this->db->escapeString($value);
		}
		else
		{
			return "'".$value."'";
		}
	}

	//correctly format a string value from a table before showing it
	public function formatString($value)
	{
		return htmlspecialchars(stripslashes($value));
	}

	//import
	public function import($query)
	{
		return $this->multiQuery($query);
	}

	//export
	public function export($tables, $drop, $structure, $data, $transaction, $comments)
	{
		if($comments)
		{
			echo "----\r\n";
			echo "-- phpLiteAdmin database dump (http://phpliteadmin.googlecode.com)\r\n";
			echo "-- phpLiteAdmin version: ".VERSION."\r\n";
			echo "-- Exported on ".date('M jS, Y, h:i:sA')."\r\n";
			echo "-- Database file: ".$this->getPath()."\r\n";
			echo "----\r\n";
		}
		$query = "SELECT * FROM sqlite_master WHERE type='table' OR type='index' ORDER BY type DESC";
		$result = $this->selectArray($query);

		//iterate through each table
		for($i=0; $i<sizeof($result); $i++)
		{
			$valid = false;
			for($j=0; $j<sizeof($tables); $j++)
			{
				if($result[$i]['tbl_name']==$tables[$j])
					$valid = true;
			}
			if($valid)
			{
				if($drop)
				{
					if($comments)
					{
						echo "\r\n----\r\n";
						if($result[$i]['type']=="table")
							echo "-- Drop table for ".$result[$i]['tbl_name']."\r\n";
						else
							echo "-- Drop index for ".$result[$i]['name']."\r\n";
						echo "----\r\n";
					}
					if($result[$i]['type']=="table")
						echo "DROP TABLE '".$result[$i]['tbl_name']."';\r\n";
					else
						echo "DROP INDEX '".$result[$i]['name']."';\r\n";
				}
				if($structure)
				{
					if($comments)
					{
						echo "\r\n----\r\n";
						if($result[$i]['type']=="table")
							echo "-- Table structure for ".$result[$i]['tbl_name']."\r\n";
						else
							echo "-- Structure for index ".$result[$i]['name']." on table ".$result[$i]['tbl_name']."\r\n";
						echo "----\r\n";
					}
					echo $result[$i]['sql'].";\r\n";
				}
				if($data && $result[$i]['type']=="table")
				{
					$query = "SELECT * FROM ".$result[$i]['tbl_name'];
					$arr = $this->selectArray($query, "assoc");

					if($comments)
					{
						echo "\r\n----\r\n";
						echo "-- Data dump for ".$result[$i]['tbl_name'].", a total of ".sizeof($arr)." rows\r\n";
						echo "----\r\n";
					}
					$query = "PRAGMA table_info('".$result[$i]['tbl_name']."')";
					$temp = $this->selectArray($query);
					$cols = array();
					$vals = array();
					for($z=0; $z<sizeof($temp); $z++)
						$cols[$z] = $temp[$z][1];
					for($z=0; $z<sizeof($arr); $z++)
					{
						for($y=0; $y<sizeof($cols); $y++)
						{
							if(!isset($vals[$z]))
								$vals[$z] = array();
							$vals[$z][$cols[$y]] = $this->quote($arr[$z][$cols[$y]]);
						}
					}
					if($transaction)
						echo "BEGIN TRANSACTION;\r\n";
					for($j=0; $j<sizeof($vals); $j++)
						echo "INSERT INTO ".$result[$i]['tbl_name']." (".implode(",", $cols).") VALUES (".implode(",", $vals[$j]).");\r\n";
					if($transaction)
						echo "COMMIT;\r\n";
				}
			}
		}
	}
}

$auth = new Authorization(); //create authorization object
if(isset($_POST['logout'])) //user has attempted to log out
	$auth->revoke();
else if(isset($_POST['login']) || isset($_POST['proc_login'])) //user has attempted to log in
{
	$_POST['login'] = true;

	if($_POST['password']==SYSTEMPASSWORD) //make sure passwords match before granting authorization
	{
		if(isset($_POST['remember']))
			$auth->grant(true);
		else
			$auth->grant(false);
	}
}

//user is downloading the exported database file
if(isset($_POST['export']))
{
	header('Content-Type: text/sql');
	header('Content-Disposition: attachment; filename="'.$_POST['filename'].'.'.$_POST['export_type'].'";');
	if(isset($_POST['tables']))
		$tables = $_POST['tables'];
	else
	{
		$tables = array();
		$tables[0] = $_POST['single_table'];
	}
	$drop = isset($_POST['drop']);
	$structure = isset($_POST['structure']);
	$data = isset($_POST['data']);
	$transaction = isset($_POST['transaction']);
	$comments = isset($_POST['comments']);
	$db = new Database($databases[$_SESSION[COOKIENAME.'currentDB']]);
	echo $db->export($tables, $drop, $structure, $data, $transaction, $comments);
	exit();
}

//user is importing a file
if(isset($_POST['import']))
{
	$data = file_get_contents($_FILES["file"]["tmp_name"]);
	$db = new Database($databases[$_SESSION[COOKIENAME.'currentDB']]);
	$importSuccess = $db->import($data);
}

// here begins the HTML.
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />
<title><?php echo PROJECT ?></title>

<?php
if(!file_exists("phpliteadmin.css")) //only use the inline stylesheet if an external one does not exist
{
?>
<!-- begin the customizable stylesheet/theme -->
<style type="text/css">
/* overall styles for entire page */
body
{
	margin: 0px;
	padding: 0px;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 14px;
	color: #000000;
	background-color: #e0ebf6;
}
/* general styles for hyperlink */
a
{
	color: #03F;
	text-decoration: none;
	cursor :pointer;
}
hr
{
	height: 1px;
	border: 0;
	color: #bbb;
	background-color: #bbb;
	width: 100%;	
}
a:hover
{
	color: #06F;
}
/* logo text containing name of project */
h1
{
	margin: 0px;
	padding: 5px;
	font-size: 24px;
	background-color: #f3cece;
	text-align: center;
	margin-bottom: 10px;
	color: #000;
	border-top-left-radius:5px;
	border-top-right-radius:5px;
	-moz-border-radius-topleft:5px;
	-moz-border-radius-topright:5px;
}
/* version text within the logo */
h1 #version
{
	color: #000000;
	font-size: 16px;
}
/* logo text within logo */
h1 #logo
{
	color:#000;
}
/* general header for various views */
h2
{
	margin:0px;
	padding:0px;
	font-size:14px;
	margin-bottom:20px;
}
/* input buttons and areas for entering text */
input, select, textarea
{
	font-family:Arial, Helvetica, sans-serif;
	background-color:#eaeaea;
	color:#03F;
	border-color:#03F;
	border-style:solid;
	border-width:1px;
	margin:5px;
	border-radius:5px;
	-moz-border-radius:5px;
	padding:3px;
}
/* just input buttons */
input.btn
{
	cursor:pointer;	
}
input.btn:hover
{
	background-color:#ccc;
}
/* general styles for hyperlink */
fieldset
{
	padding:15px;
	border-color:#03F;
	border-width:1px;
	border-style:solid;
	border-radius:5px;
	-moz-border-radius:5px;
	background-color:#f9f9f9;
}
/* outer div that holds everything */
#container
{
	padding:10px;
}
/* div of left box with log, list of databases, etc. */
#leftNav
{
	float:left;
	min-width:250px;
	padding:0px;
	border-color:#03F;
	border-width:1px;
	border-style:solid;
	background-color:#FFF;
	padding-bottom:15px;
	border-radius:5px;
	-moz-border-radius:5px;
}
/* div holding the content to the right of the leftNav */
#content
{
	overflow:hidden;
	padding-left:10px;
}
/* div holding the login fields */
#loginBox
{
	width:500px;
	margin-left:auto;
	margin-right:auto;
	margin-top:50px;
	border-color:#03F;
	border-width:1px;
	border-style:solid;
	background-color:#FFF;
	border-radius:5px;
	-moz-border-radius:5px;
}
/* div under tabs with tab-specific content */
#main
{
	border-color:#03F;
	border-width:1px;
	border-style:solid;
	padding:15px;
	overflow:auto;
	background-color:#FFF;
	border-bottom-left-radius:5px;
	border-bottom-right-radius:5px;
	border-top-right-radius:5px;
	-moz-border-radius-bottomleft:5px;
	-moz-border-radius-bottomright:5px;
	-moz-border-radius-topright:5px;
}
/* odd-numbered table rows */
.td1
{
	background-color:#f9e3e3;
	text-align:right;
	font-size:12px;
	padding-left:10px;
	padding-right:10px;
}
/* even-numbered table rows */
.td2
{
	background-color:#f3cece;
	text-align:right;
	font-size:12px;
	padding-left:10px;
	padding-right:10px;
}
/* table column headers */
.tdheader
{
	border-color:#03F;
	border-width:1px;
	border-style:solid;
	font-weight:bold;
	font-size:12px;
	padding-left:10px;
	padding-right:10px;
	background-color:#e0ebf6;
	border-radius:5px;
	-moz-border-radius:5px;
}
/* div holding the confirmation text of certain actions */
.confirm
{
	border-color:#03F;
	border-width:1px;
	border-style:dashed;
	padding:15px;
	background-color:#e0ebf6;
}
/* tab navigation for each table */
.tab
{
	display:block;
	padding:5px;
	padding-right:8px;
	padding-left:8px;
	border-color:#03F;
	border-width:1px;
	border-style:solid;
	margin-right:5px;
	float:left;
	border-bottom-style:none;
	position:relative;
	top:1px;
	padding-bottom:4px;
	background-color:#eaeaea;
	border-top-left-radius:5px;
	border-top-right-radius:5px;
	-moz-border-radius-topleft:5px;
	-moz-border-radius-topright:5px;
}
/* pressed state of tab */
.tab_pressed
{
	display:block;
	padding:5px;
	padding-right:8px;
	padding-left:8px;
	border-color:#03F;
	border-width:1px;
	border-style:solid;
	margin-right:5px;
	float:left;
	border-bottom-style:none;
	position:relative;
	top:1px;
	background-color:#FFF;
	cursor:default;
	border-top-left-radius:5px;
	border-top-right-radius:5px;
	-moz-border-radius-topleft:5px;
	-moz-border-radius-topright:5px;
}
/* tooltip styles */
#tt
{
	position:absolute;
	display:block;
}
#tttop
{
	display:block;
	height:5px;
	margin-left:5px;
	overflow:hidden
}
#ttcont
{
	display:block;
	padding:2px 12px 3px 7px;
	margin-left:5px;
	background:#f3cece;
	color:#333
}
#ttbot
{
	display:block;
	height:5px;
	margin-left:5px;
	overflow:hidden
}
</style>
<!-- end the customizable stylesheet/theme -->
<?php
}
else //an external stylesheet exists - import it
{
	echo 	"<link href='phpliteadmin.css' rel='stylesheet' type='text/css' />";
}
?>
<!-- JavaScript Support -->
<script type="text/javascript">
//makes sure autoincrement can only be selected when integer type is selected
function toggleAutoincrement(i)
{
	var type = document.getElementById(i+'_type');
	var autoincrement = document.getElementById(i+'_autoincrement');
	if(type.value=="INTEGER")
		autoincrement.disabled = false;
	else
	{
		autoincrement.disabled = true;
		autoincrement.checked = false;
	}
}
function toggleNull(i)
{
	var pk = document.getElementById(i+'_primarykey');
	var notnull = document.getElementById(i+'_notnull');
	if(pk.checked)
	{
		notnull.disabled = true;
		notnull.checked = true;
	}
	else
	{
		notnull.disabled = false;
	}
}
//finds and checks all checkboxes for all rows on the Browse or Structure tab for a table
function checkAll(field)
{
	var i=0;
	while(document.getElementById('check_'+i)!=undefined)
	{
		document.getElementById('check_'+i).checked = true;
		i++;
	}
}
//finds and unchecks all checkboxes for all rows on the Browse or Structure tab for a table
function uncheckAll(field)
{
	var i=0;
	while(document.getElementById('check_'+i)!=undefined)
	{
		document.getElementById('check_'+i).checked = false;
		i++;
	}
}
//unchecks the ignore checkbox if user has typed something into one of the fields for adding new rows
function changeIgnore(area, e, u)
{
	if(area.value!="")
	{
		if(document.getElementById(e)!=undefined)
			document.getElementById(e).checked = false;
		if(document.getElementById(u)!=undefined)
			document.getElementById(u).checked = false;
	}
}
//moves fields from select menu into query textarea for SQL tab
function moveFields()
{
	var fields = document.getElementById("fieldcontainer");
	var selected = new Array();
	for(var i=0; i<fields.options.length; i++)
		if(fields.options[i].selected)
			selected.push(fields.options[i].value);
	for(var i=0; i<selected.length; i++)
		insertAtCaret("queryval", selected[i]);
}
//helper function for moveFields
function insertAtCaret(areaId,text)
{
	var txtarea = document.getElementById(areaId);
	var scrollPos = txtarea.scrollTop;
	var strPos = 0;
	var br = ((txtarea.selectionStart || txtarea.selectionStart == '0') ? "ff" : (document.selection ? "ie" : false ));
	if(br=="ie")
	{
		txtarea.focus();
		var range = document.selection.createRange();
		range.moveStart ('character', -txtarea.value.length);
		strPos = range.text.length;
	}
	else if(br=="ff")
		strPos = txtarea.selectionStart;

	var front = (txtarea.value).substring(0,strPos);
	var back = (txtarea.value).substring(strPos,txtarea.value.length);
	txtarea.value=front+text+back;
	strPos = strPos + text.length;
	if(br=="ie")
	{
		txtarea.focus();
		var range = document.selection.createRange();
		range.moveStart ('character', -txtarea.value.length);
		range.moveStart ('character', strPos);
		range.moveEnd ('character', 0);
		range.select();
	}
	else if(br=="ff")
	{
		txtarea.selectionStart = strPos;
		txtarea.selectionEnd = strPos;
		txtarea.focus();
	}
	txtarea.scrollTop = scrollPos;
}
//tooltip help feature
var tooltip=function()
{
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 300;
	var speed = 10;
	var timer = 20;
	var endalpha = 95;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;
	return{
		show:function(v,w)
		{
			if(tt == null)
			{
				tt = document.createElement('div');
				tt.setAttribute('id',id);
				t = document.createElement('div');
				t.setAttribute('id',id + 'top');
				c = document.createElement('div');
				c.setAttribute('id',id + 'cont');
				b = document.createElement('div');
				b.setAttribute('id',id + 'bot');
				tt.appendChild(t);
				tt.appendChild(c);
				tt.appendChild(b);
				document.body.appendChild(tt);
				tt.style.opacity = 0;
				tt.style.filter = 'alpha(opacity=0)';
				document.onmousemove = this.pos;
			}
			tt.style.display = 'block';
			c.innerHTML = v;
			tt.style.width = w ? w + 'px' : 'auto';
			if(!w && ie)
			{
				t.style.display = 'none';
				b.style.display = 'none';
				tt.style.width = tt.offsetWidth;
				t.style.display = 'block';
				b.style.display = 'block';
			}
			if(tt.offsetWidth > maxw)
				tt.style.width = maxw + 'px'
			h = parseInt(tt.offsetHeight) + top;
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(1)},timer);
		},
		pos:function(e)
		{
			var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			tt.style.top = (u - h) + 'px';
			tt.style.left = (l + left) + 'px';
		},
		fade:function(d)
		{
			var a = alpha;
			if((a != endalpha && d == 1) || (a != 0 && d == -1))
			{
				var i = speed;
				if(endalpha - a < speed && d == 1)
					i = endalpha - a;
				else if(alpha < speed && d == -1)
					i = a;
				alpha = a + (i * d);
				tt.style.opacity = alpha * .01;
				tt.style.filter = 'alpha(opacity=' + alpha + ')';
			}
			else
			{
				clearInterval(tt.timer);
				if(d == -1)
					tt.style.display = 'none';
			}
		},
		hide:function()
		{
			clearInterval(tt.timer);
			tt.timer = setInterval(function()
			{
				tooltip.fade(-1)
			},timer);
		}
	};
}();

function notNull(checker)
{
	document.getElementById(checker).checked = false;
}

function disableText(checker, textie)
{
	if(checker.checked)
	{
		document.getElementById(textie).disabled = true;	
	}
	else
	{
		document.getElementById(textie).disabled = false;	
	}
}
</script>
</head>
<body>
<?php
if(ini_get("register_globals")) //check whether register_globals is turned on - if it is, we need to not continue
{
	echo "<div class='confirm' style='margin:20px;'>";
	echo "It appears that the PHP directive, 'register_globals' is enabled. This is bad. You need to disable it before continuing.";
	echo "</div>";
	exit();
}

if(!$auth->isAuthorized()) //user is not authorized - display the login screen
{
	echo "<div id='loginBox'>";
	echo "<h1><span id='logo'>".PROJECT."</span> <span id='version'>v".VERSION."</span></h1>";
	echo "<div style='padding:15px; text-align:center;'>";
	if(isset($_POST['login']))
		echo "<span style='color:red;'>Incorrect password.</span><br/><br/>";
	echo "<form action='".PAGE."' method='post'>";
	echo "Password: <input type='password' name='password'/><br/>";
	echo "<input type='checkbox' name='remember' value='yes' checked='checked'/> Remember me<br/><br/>";
	echo "<input type='submit' value='Log In' name='login' class='btn'/>";
	echo "<input type='hidden' name='proc_login' value='true' />";
	echo "</form>";
	echo "</div>";
	echo "</div>";
	echo "<br/>";
	echo "<div style='text-align:center;'>";
	$endTimeTot = microtime(true);
	$timeTot = round(($endTimeTot - $startTimeTot), 4);
	echo "<span style='font-size:11px;'>Powered by <a href='http://phpliteadmin.googlecode.com' target='_blank' style='font-size:11px;'>".PROJECT."</a> | Page generated in ".$timeTot." seconds.</span>";
	echo "</div>";
}
else //user is authorized - display the main application
{
	if(!isset($_SESSION[COOKIENAME.'currentDB']))
		$_SESSION[COOKIENAME.'currentDB'] = 0;
	//set the current database to the first in the array (default)
	if(sizeof($databases)>0)
		$currentDB = $databases[0];
	else //the database array is empty - show error and halt execution
	{
		echo "<div class='confirm' style='margin:20px;'>";
		echo "Error: you have not specified any databases to manage.";
		echo "</div><br/>";
		exit();
	}

	if(isset($_POST['database_switch'])) //user is switching database with drop-down menu
	{
		$_SESSION[COOKIENAME."currentDB"] = $_POST['database_switch'];
		$currentDB = $databases[$_SESSION[COOKIENAME.'currentDB']];
	}
	else if(isset($_GET['switchdb']))
	{
		$_SESSION[COOKIENAME."currentDB"] = $_GET['switchdb'];
		$currentDB = $databases[$_SESSION[COOKIENAME.'currentDB']];
	}
	if(isset($_SESSION[COOKIENAME.'currentDB']))
		$currentDB = $databases[$_SESSION[COOKIENAME.'currentDB']];

	//create the objects
	$db = new Database($currentDB); //create the Database object

	//switch board for various operations a user could have requested - these actions are invisible and produce no output
	if(isset($_GET['action']) && isset($_GET['confirm']))
	{
		switch($_GET['action'])
		{
			//table actions
			/////////////////////////////////////////////// create table
			case "table_create":
				$num = intval($_POST['rows']);
				$name = $_POST['tablename'];
				$query = "CREATE TABLE ".$name."(";
				for($i=0; $i<$num; $i++)
				{
					if($_POST[$i.'_field']!="")
					{
						$query .= $_POST[$i.'_field']." ";
						$query .= $_POST[$i.'_type']." ";
						if(isset($_POST[$i.'_primarykey']))
							$query .= "PRIMARY KEY NOT NULL ";
						if(!isset($_POST[$i.'_primarykey']) && isset($_POST[$i.'_notnull']))
							$query .= "NOT NULL ";
						if($_POST[$i.'_defaultvalue']!="")
						{
							if($_POST[$i.'_type']=="INTEGER")
								$query .= "default ".$_POST[$i.'_defaultvalue']."  ";
							else
								$query .= "default '".$_POST[$i.'_defaultvalue']."' ";
						}
						$query = substr($query, 0, sizeof($query)-2);
						$query .= ", ";
					}
				}
				$query = substr($query, 0, sizeof($query)-3);
				$query .= ")";
				$result = $db->query($query);
				if(!$result)
					$error = true;
				$completed = "Table '".$_POST['tablename']."' has been created.<br/><span style='font-size:11px;'>".$query."</span>";
				break;
			/////////////////////////////////////////////// empty table
			case "table_empty":
				$query = "DELETE FROM ".$_POST['tablename'];
				$result = $db->query($query);
				if(!$result)
					$error = true;
				$query = "VACUUM";
				$result = $db->query($query);
				if(!$result)
					$error = true;
				$completed = "Table '".$_POST['tablename']."' has been emptied.<br/><span style='font-size:11px;'>".$query."</span>";
				break;
			/////////////////////////////////////////////// drop table
			case "table_drop":
				$query = "DROP TABLE ".$_POST['tablename'];
				$db->query($query);
				$completed = "Table '".$_POST['tablename']."' has been dropped.";
				break;
			/////////////////////////////////////////////// rename table
			case "table_rename":
				$query = "ALTER TABLE ".$_POST['oldname']." RENAME TO ".$_POST['newname'];
				if($db->getVersion()==3)
					$result = $db->query($query, true);
				else
					$result = $db->query($query, false);
				if(!$result)
					$error = true;
				$completed = "Table '".$_POST['oldname']."' has been renamed to '".$_POST['newname']."'.<br/><span style='font-size:11px;'>".$query."</span>";
				break;
			//row actions
			/////////////////////////////////////////////// create row
			case "row_create":
				$completed = "";
				$num = $_POST['numRows'];
				$fields = explode(":", $_POST['fields']);
				$z = 0;
				
				$query = "PRAGMA table_info('".$_GET['table']."')";
				$result = $db->selectArray($query);
				
				for($i=0; $i<$num; $i++)
				{
					if(!isset($_POST[$i.":ignore"]))
					{
						$query = "INSERT INTO ".$_GET['table']." (";
						for($j=0; $j<sizeof($fields); $j++)
						{
							$query .= $fields[$j].",";
						}
						$query = substr($query, 0, sizeof($query)-2);
						$query .= ") VALUES (";
						for($j=0; $j<sizeof($fields); $j++)
						{
							$value = $_POST[$i.":".$fields[$j]];
							$null = isset($_POST[$i.":".$fields[$j]."_null"]);
							$type = $result[$j][2];
							$function = $_POST["function_".$i."_".$fields[$j]];
							if($function!="")
								$query .= $function."(";
								//di - messed around with this logic for null values
							if(($type=="TEXT" || $type=="BLOB") && $null==false)
								$query .= $db->quote($value);
							else if(($type=="INTEGER" || $type=="REAL") && $null==false && $value=="")
								$query .= "NULL";
							else if($null==true)
								$query .= "NULL";
							else
								$query .= $db->quote($value);
							if($function!="")
								$query .= ")";
							$query .= ",";
						}
						$query = substr($query, 0, sizeof($query)-2);
						$query .= ")";
						$result = $db->query($query);
						if(!$result)
							$error = true;
						$completed .= "<span style='font-size:11px;'>".$query."</span><br/>";
						$z++;
					}
				}
				$completed = $z." row(s) inserted.<br/><br/>".$completed;
				break;
			/////////////////////////////////////////////// delete row
			case "row_delete":
				$pks = explode(":", $_GET['pk']);
				$str = $pks[0];
				$query = "DELETE FROM ".$_GET['table']." WHERE ROWID = ".$pks[0];
				for($i=1; $i<sizeof($pks); $i++)
				{
					$str .= ", ".$pks[$i];
					$query .= " OR ROWID = ".$pks[$i];
				}
				$result = $db->query($query);
				if(!$result)
					$error = true;
				$completed = sizeof($pks)." row(s) deleted.<br/><span style='font-size:11px;'>".$query."</span>";
				break;
			/////////////////////////////////////////////// edit row
			case "row_edit":
				$pks = explode(":", $_GET['pk']);
				$fields = explode(":", $_POST['fieldArray']);

				$completed = sizeof($pks)." row(s) affected.<br/><br/>";

				for($i=0; $i<sizeof($pks); $i++)
				{
					$query = "UPDATE ".$_GET['table']." SET ";
					for($j=0; $j<sizeof($fields); $j++)
					{
						$function = $_POST["function_".$pks[$i]."_".$fields[$j]];
						$null = $_POST[$pks[$i].":".$fields[$j]."_null"];
						$query .= $fields[$j]."=";
						if($function!="")
							$query .= $function."(";
						if(isset($null))
							$query .= "NULL";
						else
							$query .= $db->quote($_POST[$pks[$i].":".$fields[$j]]);
						if($function!="")
							$query .= ")";
						$query .= ", ";
					}
					$query = substr($query, 0, sizeof($query)-3);
					$query .= " WHERE ROWID = ".$pks[$i];
					$result = $db->query($query);
					if(!$result)
					{
						$error = true;
					}
					$completed .= "<span style='font-size:11px;'>".$query."</span><br/>";
				}
				break;
			//column actions
			/////////////////////////////////////////////// create column
			case "column_create":
				$num = intval($_POST['rows']);
				for($i=0; $i<$num; $i++)
				{
					if($_POST[$i.'_field']!="")
					{
						$query = "ALTER TABLE ".$_GET['table']." ADD ".$_POST[$i.'_field']." ";
						$query .= $_POST[$i.'_type']." ";
						if(isset($_POST[$i.'_primarykey']))
							$query .= "PRIMARY KEY ";
						if(isset($_POST[$i.'_notnull']))
							$query .= "NOT NULL ";
						if($_POST[$i.'_defaultvalue']!="")
						{
							if($_POST[$i.'_type']=="INTEGER")
								$query .= "DEFAULT ".$_POST[$i.'_defaultvalue']."  ";
							else
								$query .= "DEFAULT '".$_POST[$i.'_defaultvalue']."' ";
						}
						if($db->getVersion()==3)
							$result = $db->query($query, true);
						else
							$result = $db->query($query, false);
						if(!$result)
							$error = true;
					}
				}
				$completed = "Table '".$_GET['table']."' has been altered successfully.";
				break;
			/////////////////////////////////////////////// delete column
			case "column_delete":
				$pks = explode(":", $_GET['pk']);
				$str = $pks[0];
				$query = "ALTER TABLE ".$_GET['table']." DROP ".$pks[0];
				for($i=1; $i<sizeof($pks); $i++)
				{
					$str .= ", ".$pks[$i];
					$query .= ", DROP ".$pks[$i];
				}
				$result = $db->query($query);
				if(!$result)
					$error = true;
				$completed = "Table '".$_GET['table']."' has been altered successfully.";
				break;
			/////////////////////////////////////////////// edit column
			case "column_edit":
				$query = "ALTER TABLE ".$_GET['table']." CHANGE ".$_POST['field_old']." ".$_POST['field']." ".$_POST['type'];
				$result = $db->query($query);
				if(!$result)
					$error = true;
				$completed = "Table '".$_GET['table']."' has been altered successfully.";
				break;
			/////////////////////////////////////////////// delete index
			case "index_delete":
				$query = "DROP INDEX ".$_GET['pk'];
				$result = $db->query($query);
				if(!$result)
					$error = true;
				$completed = "Index '".$_GET['pk']."' deleted.<br/><span style='font-size:11px;'>".$query."</span>";
				break;
			/////////////////////////////////////////////// create index
			case "index_create":
				$num = $_POST['num'];
				if($_POST['name']=="")
				{
					$completed = "Index name must not be blank.";
				}
				else if($_POST['0_field']=="")
				{
					$completed = "You must specify at least one index column.";
				}
				else
				{
					$str = "CREATE ";
					if($_POST['duplicate']=="no")
						$str .= "UNIQUE ";
					$str .= "INDEX ".$_POST['name']." ON ".$_GET['table']." (";
					$str .= $_POST['0_field'].$_POST['0_order'];
					for($i=1; $i<$num; $i++)
					{
						if($_POST[$i.'_field']!="")
							$str .= ", ".$_POST[$i.'_field'].$_POST[$i.'_order'];
					}
					$str .= ")";
					$query = $str;
					$result = $db->query($query);
					if(!$result)
						$error = true;
					$completed = "Index created.<br/><span style='font-size:11px;'>".$query."</span>";
				}
				break;
		}
	}

	echo "<div id='container'>";
	echo "<div id='leftNav'>";
	echo "<h1>";
	echo "<a href='".PAGE."'>";
	echo "<span id='logo'>".PROJECT."</span> <span id='version'>v".VERSION."</span>";
	echo "</a>";
	echo "</h1>";
	echo "<fieldset style='margin:15px;'><legend><b>Change Database</b></legend>";
	if(sizeof($databases)<10) //if there aren't a lot of databases, just show them as a list of links instead of drop down menu
	{
		for($i=0; $i<sizeof($databases); $i++)
		{
			// 22 August 2011: gkf fixed bug #49
			echo $databases[$i]['perms'];
			if($i==$_SESSION[COOKIENAME.'currentDB'])
				echo "<a href='".PAGE."?switchdb=".$i."' style='text-decoration:underline;'>".$databases[$i]['name']."</a>";
			else
				echo "<a href='".PAGE."?switchdb=".$i."'>".$databases[$i]['name']."</a>";
			if($i<sizeof($databases)-1)
				echo "<br/>";
		}
	}
	else //there are a lot of databases - show a drop down menu
	{
		echo "<form action='".PAGE."' method='post'>";
		echo "<select name='database_switch'>";
		// 22 August 2011: gkf fixed bug #49
		for($i=0; $i<sizeof($databases); $i++)
		{
			if($i==$_SESSION[COOKIENAME.'currentDB'])
				echo "<option value='".$i."' selected='selected'>".$databases[$i]['perms'].$databases[$i]['name']."</option>";
			else
				echo "<option value='".$i."'>".$databases[$i]['perms'].$databases[$i]['name']."</option>";
		}
		echo "</select> ";
		echo "<input type='submit' value='Go' class='btn'>";
		echo "</form>";
	}
	echo "</fieldset>";
	echo "<fieldset style='margin:15px;'><legend>";
	echo "<a href='".PAGE."'";
	if(!isset($_GET['table']))
		echo " style='text-decoration:underline;'";
	echo ">".$currentDB['name']."</a>";
	echo "</legend>";
	//Display list of tables
	$query = "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name";
	$result = $db->selectArray($query);
	$j=0;
	for($i=0; $i<sizeof($result); $i++)
	{
		if(substr($result[$i]['name'], 0, 7)!="sqlite_" && $result[$i]['name']!="")
		{
			echo "<a href='".PAGE."?action=row_view&table=".$result[$i]['name']."'";
			if(isset($_GET['table']) && $_GET['table']==$result[$i]['name'])
				echo " style='text-decoration:underline;'";
			echo ">".$result[$i]['name']."</a><br/>";
			$j++;
		}
	}
	if($j==0)
		echo "No tables in database.";
	echo "</fieldset>";
	echo "<div style='text-align:center;'>";
	echo "<form action='".PAGE."' method='post'/>";
	echo "<input type='submit' value='Log Out' name='logout' class='btn'/>";
	echo "</form>";
	echo "</div>";
	echo "</div>";
	echo "<div id='content'>";

	//breadcrumb navigation
	echo "<a href='".PAGE."'>".$currentDB['name']."</a>";
	if(isset($_GET['table']))
		echo " &rarr; <a href='".PAGE."?table=".$_GET['table']."&action=row_view'>".$_GET['table']."</a>";
	echo "<br/><br/>";

	//user has performed some action so show the resulting message
	if(isset($_GET['confirm']))
	{
		echo "<div id='main'>";
		echo "<div class='confirm'>";
		if(isset($error) && $error) //an error occured during the action, so show an error message
			echo "An error occured. This may be a bug that needs to be reported at <a href='http://code.google.com/p/phpliteadmin/issues/list' target='_blank'>code.google.com/p/phpliteadmin/issues/list</a>";
		else //action was performed successfully - show success message
			echo $completed;
		echo "</div>";
		if($_GET['action']=="row_delete" || $_GET['action']=="row_create" || $_GET['action']=="row_edit")
			echo "<br/><br/><a href='".PAGE."?table=".$_GET['table']."&action=row_view'>Return</a>";
		else if($_GET['action']=="column_create" || $_GET['action']=="column_delete" || $_GET['action']=="column_edit" || $_GET['action']=="index_create" || $_GET['action']=="index_delete")
			echo "<br/><br/><a href='".PAGE."?table=".$_GET['table']."&action=column_view'>Return</a>";
		else
			echo "<br/><br/><a href='".PAGE."'>Return</a>";
		echo "</div>";
	}

	//show the various tab views for a table
	if(!isset($_GET['confirm']) && isset($_GET['table']) && isset($_GET['action']) && ($_GET['action']=="table_export" || $_GET['action']=="table_import" || $_GET['action']=="table_sql" || $_GET['action']=="row_view" || $_GET['action']=="row_create" || $_GET['action']=="column_view" || $_GET['action']=="table_rename" || $_GET['action']=="table_search"))
	{
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=row_view' ";
		if($_GET['action']=="row_view")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Browse</a>";
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=column_view' ";
		if($_GET['action']=="column_view")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Structure</a>";
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=table_sql' ";
		if($_GET['action']=="table_sql")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">SQL</a>";
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=table_search' ";
		if($_GET['action']=="table_search")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Search</a>";
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=row_create' ";
		if($_GET['action']=="row_create")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Insert</a>";
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=table_export' ";
		if($_GET['action']=="table_export")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Export</a>";
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=table_import' ";
		if($_GET['action']=="table_import")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Import</a>";
		echo "<a href='".PAGE."?table=".$_GET['table']."&action=table_rename' ";
		if($_GET['action']=="table_rename")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Rename</a>";
		echo "<a href='".PAGE."?action=table_empty&table=".$_GET['table']."' ";
		echo "class='tab' style='color:red;'";
		echo ">Empty</a>";
		echo "<a href='".PAGE."?action=table_drop&table=".$_GET['table']."' ";
		echo "class='tab' style='color:red;'";
		echo ">Drop</a>";
		echo "<div style='clear:both;'></div>";
	}

	//switch board for the page display
	if(isset($_GET['action']) && !isset($_GET['confirm']))
	{
		echo "<div id='main'>";
		switch($_GET['action'])
		{
			//table actions
			/////////////////////////////////////////////// create table
			case "table_create":
				$query = "SELECT name FROM sqlite_master WHERE type='table' AND name='".$_POST['tablename']."'";
				$results = $db->selectArray($query);
				if(sizeof($results)>0)
					$exists = true;
				else
					$exists = false;
				echo "<h2>Creating new table: '".$_POST['tablename']."'</h2>";
				if($_POST['tablefields']=="" || intval($_POST['tablefields'])<=0)
					echo "You must specify the number of table fields.";
				else if($_POST['tablename']=="")
					echo "You must specify a table name.";
				else if($exists)
					echo "Table of the same name already exists.";
				else
				{
					$num = intval($_POST['tablefields']);
					$name = $_POST['tablename'];
					echo "<form action='".PAGE."?action=table_create&confirm=1' method='post'>";
					echo "<input type='hidden' name='tablename' value='".$name."'/>";
					echo "<input type='hidden' name='rows' value='".$num."'/>";
					echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
					echo "<tr>";
					$headings = array("Field", "Type", "Primary Key", "Autoincrement", "Not NULL", "Default Value");
      			for($k=0; $k<count($headings); $k++)
						echo "<td class='tdheader'>" . $headings[$k] . "</td>";
					echo "</tr>";

					for($i=0; $i<$num; $i++)
					{
						$tdWithClass = "<td class='td" . ($i%2 ? "1" : "2") . "'>";
						echo "<tr>";
						echo $tdWithClass;
						echo "<input type='text' name='".$i."_field' style='width:200px;'/>";
						echo "</td>";
						echo $tdWithClass;
						echo "<select name='".$i."_type' id='".$i."_type' onchange='toggleAutoincrement(".$i.");'>";
						$types = unserialize(DATATYPES);
						for($z=0; $z<sizeof($types); $z++)
							echo "<option value='".$types[$z]."'>".$types[$z]."</option>";
						echo "</select>";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='checkbox' name='".$i."_primarykey' id='".$i."_primarykey' onclick='toggleNull(".$i.");'/> Yes";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='checkbox' name='".$i."_autoincrement' id='".$i."_autoincrement'/> Yes";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='checkbox' name='".$i."_notnull' id='".$i."_notnull'/> Yes";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='text' name='".$i."_defaultvalue' style='width:100px;'/>";
						echo "</td>";
						echo "</tr>";
					}
					echo "<tr>";
					echo "<td class='tdheader' style='text-align:right;' colspan='6'>";
					echo "<input type='submit' value='Create' class='btn'/> ";
					echo "<a href='".PAGE."'>Cancel</a>";
					echo "</td>";
					echo "</tr>";
					echo "</table>";
					echo "</form>";
				}
				break;
			/////////////////////////////////////////////// perform SQL query on table
			case "table_sql":
				$isSelect = false;
				if(isset($_POST['query']) && $_POST['query']!="")
				{
					$delimiter = $_POST['delimiter'];
					$queryStr = stripslashes($_POST['queryval']);
					$query = explode($delimiter, $queryStr); //explode the query string into individual queries based on the delimiter

					for($i=0; $i<sizeof($query); $i++) //iterate through the queries exploded by the delimiter
					{
						if(str_replace(" ", "", str_replace("\n", "", str_replace("\r", "", $query[$i])))!="") //make sure this query is not an empty string
						{
							$startTime = microtime(true);
							if(strpos(strtolower($query[$i]), "select ")!==false)
							{
								$isSelect = true;
								$result = $db->selectArray($query[$i], "assoc");
							}
							else
							{
								$isSelect = false;
								$result = $db->query($query[$i]);
							}
							$endTime = microtime(true);
							$time = round(($endTime - $startTime), 4);

							echo "<div class='confirm'>";
							echo "<b>";
							if($isSelect && $result)
							{
								if($isSelect)
								{
									$affected = sizeof($result);
									echo "Showing ".$affected." row(s). ";
								}
								else
								{
									$affected = $db->getAffectedRows();
									echo $affected." row(s) affected. ";
								}
								echo "(Query took ".$time." sec)</b><br/>";
							}
							else
							{
								echo "There is a problem with the syntax of your query ";
								echo "(Query was not executed)</b><br/>";
							}
							echo "<span style='font-size:11px;'>".$query[$i]."</span>";
							echo "</div><br/>";
							if($isSelect)
							{
								if(sizeof($result)>0)
								{
									$headers = array_keys($result[0]);

									echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
									echo "<tr>";
									for($j=0; $j<sizeof($headers); $j++)
									{
										echo "<td class='tdheader'>";
										echo $headers[$j];
										echo "</td>";
									}
									echo "</tr>";
									for($j=0; $j<sizeof($result); $j++)
									{
										$tdWithClass = "<td class='td".($j%2 ? "1" : "2")."'>";
										echo "<tr>";
										for($z=0; $z<sizeof($headers); $z++)
										{
											echo $tdWithClass;
											echo $result[$j][$headers[$z]];
											echo "</td>";
										}
										echo "</tr>";
									}
									echo "</table><br/><br/>";
								}
							}
						}
					}
				}
				else
				{
					$delimiter = ";";
					$queryStr = "SELECT * FROM ".$_GET['table']." WHERE 1";
				}

				echo "<fieldset>";
				echo "<legend><b>Run SQL query/queries on database '".$db->getName()."'</b></legend>";
				echo "<form action='".PAGE."?table=".$_GET['table']."&action=table_sql' method='post'>";
				echo "<div style='float:left; width:70%;'>";
				echo "<textarea style='width:97%; height:300px;' name='queryval' id='queryval'>".$queryStr."</textarea>";
				echo "</div>";
				echo "<div style='float:left; width:28%; padding-left:10px;'>";
				echo "Fields<br/>";
				echo "<select multiple='multiple' style='width:100%;' id='fieldcontainer'>";
				$query = "PRAGMA table_info('".$_GET['table']."')";
				$result = $db->selectArray($query);
				for($i=0; $i<sizeof($result); $i++)
				{
					echo "<option value='".$result[$i][1]."'>".$result[$i][1]."</option>";
				}
				echo "</select>";
				echo "<input type='button' value='<<' onclick='moveFields();' class='btn'/>";
				echo "</div>";
				echo "<div style='clear:both;'></div>";
				echo "Delimiter <input type='text' name='delimiter' value='".$delimiter."' style='width:50px;'/> ";
				echo "<input type='submit' name='query' value='Go' class='btn'/>";
				echo "</form>";
				break;
			/////////////////////////////////////////////// empty table
			case "table_empty":
				echo "<form action='".PAGE."?action=table_empty&confirm=1' method='post'>";
				echo "<input type='hidden' name='tablename' value='".$_GET['table']."'/>";
				echo "<div class='confirm'>";
				echo "Are you sure you want to empty the table '".$_GET['table']."'?<br/><br/>";
				echo "<input type='submit' value='Confirm' class='btn'/> ";
				echo "<a href='".PAGE."'>Cancel</a>";
				echo "</div>";
				break;
			/////////////////////////////////////////////// drop table
			case "table_drop":
				echo "<form action='".PAGE."?action=table_drop&confirm=1' method='post'>";
				echo "<input type='hidden' name='tablename' value='".$_GET['table']."'/>";
				echo "<div class='confirm'>";
				echo "Are you sure you want to drop the table '".$_GET['table']."'?<br/><br/>";
				echo "<input type='submit' value='Confirm' class='btn'/> ";
				echo "<a href='".PAGE."'>Cancel</a>";
				echo "</div>";
				break;
			/////////////////////////////////////////////// export table
			case "table_export":
				echo "<form method='post' action='".PAGE."'>";
				echo "<fieldset style='float:left; width:260px; margin-right:20px;'><legend><b>Export</b></legend>";
				echo "<input type='hidden' value='".$_GET['table']."' name='single_table'/>";
				echo "<input type='radio' name='export_type' checked='checked' value='sql'/> SQL";
				echo "</fieldset>";
				echo "<fieldset style='float:left;'><legend><b>Options</b></legend>";
				echo "<input type='checkbox' checked='checked' name='structure'/> Export with structure [<a onmouseover='tooltip.show(\"Creates the queries to add the tables and their columns\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
				echo "<input type='checkbox' checked='checked' name='data'/> Export with data [<a onmouseover='tooltip.show(\"Creates the queries to insert the table rows\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
				echo "<input type='checkbox' name='drop'/> Add DROP TABLE [<a onmouseover='tooltip.show(\"Creates the queries to remove the tables before potentially adding them so that errors do not occur if they already exist\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
				echo "<input type='checkbox' checked='checked' name='transaction'/> Add TRANSACTION [<a onmouseover='tooltip.show(\"Performs queries within transactions so that if an error occurs, the table is not returned to a partially incomplete and unusable state\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
				echo "<input type='checkbox' checked='checked' name='comments'/> Comments [<a onmouseover='tooltip.show(\"Adds comments to the file to explain what is happening in each part of it\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
				echo "</fieldset>";
				echo "<div style='clear:both;'></div>";
				echo "<br/><br/>";
				echo "<fieldset style='float:left;'><legend><b>Save As</b></legend>";
				echo "<input type='hidden' name='database_num' value='".$_SESSION[COOKIENAME.'currentDB']."'/>";
				$file = pathinfo($db->getPath());
				$name = $file['filename'];
				echo "<input type='text' name='filename' value='".$name.".".$_GET['table'].".".date("n-j-y").".dump' style='width:400px;'/> <input type='submit' name='export' value='Export' class='btn'/>";
				echo "</fieldset>";
				echo "</form>";
				break;
			/////////////////////////////////////////////// import table
			case "table_import":
				if(isset($_POST['import']))
				{
					echo "<div class='confirm'>";
					if($importSuccess===true)
						echo "Import was successful.";
					else
						echo $importSuccess;
					echo "</div><br/>";
				}
				echo "<form method='post' action='".PAGE."?table=".$_GET['action']."&action=table_import' enctype='multipart/form-data'>";
				echo "<fieldset><legend><b>File to import</b></legend>";
				echo "<input type='radio' name='export_type' checked='checked' value='sql'/> SQL";
				echo "<br/><br/>";
				echo "<input type='file' value='Choose File' name='file' style='background-color:transparent; border-style:none;'/> <input type='submit' value='Import' name='import' class='btn'/>";
				echo "</fieldset>";
				break;
			/////////////////////////////////////////////// rename table
			case "table_rename":
				echo "<form action='".PAGE."?action=table_rename&confirm=1' method='post'>";
				echo "<input type='hidden' name='oldname' value='".$_GET['table']."'/>";
				echo "Rename table '".$_GET['table']."' to <input type='text' name='newname' style='width:200px;'/> <input type='submit' value='Rename' name='rename' class='btn'/>";
				echo "</form>";
				break;
			/////////////////////////////////////////////// search table
			case "table_search":
				if(isset($_GET['done']))
				{
					$query = "PRAGMA table_info('".$_GET['table']."')";
					$result = $db->selectArray($query);
					$str = "";
					$j = 0;
					$arr = array();
					for($i=0; $i<sizeof($result); $i++)
					{
						$field = $result[$i][1];
						$operator = $_POST[$field.":operator"];
						$value = $_POST[$field];
						if($value!="" || $operator=="!= ''" || $operator=="= ''")
						{
							if($operator=="= ''" || $operator=="!= ''")
								$arr[$j] .= $field." ".$operator;
							else
								$arr[$j] .= $field." ".$operator." ".$db->quote($value);
							$j++;
						}
					}
					$query = "SELECT * FROM ".$_GET['table'];
					if(sizeof($arr)>0)
					{
						$query .= " WHERE ".$arr[0];
						for($i=1; $i<sizeof($arr); $i++)
						{
							$query .= " AND ".$arr[$i];
						}
					}
					$startTime = microtime(true);
					$result = $db->selectArray($query, "assoc");
					$endTime = microtime(true);
					$time = round(($endTime - $startTime), 4);

					echo "<div class='confirm'>";
					echo "<b>";
					if($result)
					{
						$affected = sizeof($result);
						echo "Showing ".$affected." row(s). ";
						echo "(Query took ".$time." sec)</b><br/>";
					}
					else
					{
						echo "There is a problem with the syntax of your query ";
						echo "(Query was not executed)</b><br/>";
					}
					echo "<span style='font-size:11px;'>".$query."</span>";
					echo "</div><br/>";

					if(sizeof($result)>0)
					{
						$headers = array_keys($result[0]);

						echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
						echo "<tr>";
						for($j=0; $j<sizeof($headers); $j++)
						{
							echo "<td class='tdheader'>";
							echo $headers[$j];
							echo "</td>";
						}
						echo "</tr>";
						for($j=0; $j<sizeof($result); $j++)
						{
							$tdWithClass = "<td class='td".($j%2 ? "1" : "2")."'>";
							echo "<tr>";
							for($z=0; $z<sizeof($headers); $z++)
							{
								echo $tdWithClass;
								echo $result[$j][$headers[$z]];
								echo "</td>";
							}
							echo "</tr>";
						}
						echo "</table><br/><br/>";
						echo "<a href='".PAGE."?table=".$_GET['table']."&action=table_search'>Do Another Search</a>";
					}
				}
				else
				{
					$query = "PRAGMA table_info('".$_GET['table']."')";
					$result = $db->selectArray($query);

					echo "<form action='".PAGE."?table=".$_GET['table']."&action=table_search&done=1' method='post'>";
					echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
					echo "<tr>";
					echo "<td class='tdheader'>Field</td>";
					echo "<td class='tdheader'>Type</td>";
					echo "<td class='tdheader'>Operator</td>";
					echo "<td class='tdheader'>Value</td>";
					echo "</tr>";

					for($i=0; $i<sizeof($result); $i++)
					{
					  $field = $result[$i][1];
					  $type = $result[$i][2];
					  $tdWithClass = "<td class='td".($i%2 ? "1" : "2")."'>";
					  $tdWithClassLeft = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;'>";
					  echo "<tr>";
					  echo $tdWithClassLeft;
					  echo $field;
					  echo "</td>";
					  echo $tdWithClassLeft;
					  echo $type;
					  echo "</td>";
					  echo $tdWithClassLeft;
					  echo "<select name='".$field.":operator'>";
					  echo "<option value='='>=</option>";
					  if($type=="INTEGER" || $type=="REAL")
					  {
						  echo "<option value='>'>></option>";
						  echo "<option value='>='>>=</option>";
						  echo "<option value='<'><</option>";
						  echo "<option value='<='><=</option>";
					  }
					  else if($type=="TEXT" || $type=="BLOB")
					  {
						  echo "<option value='= '''>= ''</option>";
						  echo "<option value='!= '''>!= ''</option>";
					  }
					  echo "<option value='!='>!=</option>";
					  if($type=="TEXT" || $type=="BLOB")
						  echo "<option value='LIKE' selected='selected'>LIKE</option>";
					  else
						  echo "<option value='LIKE'>LIKE</option>";
					  echo "<option value='NOT LIKE'>NOT LIKE</option>";
					  echo "</select>";
					  echo "</td>";
					  echo $tdWithClassLeft;
					  if($type=="INTEGER" || $type=="REAL" || $type=="NULL")
						  echo "<input type='text' name='".$field."'/>";
					  else
						  echo "<textarea name='".$field."' wrap='hard' rows='1' cols='60'></textarea>";
					  echo "</td>";
					  echo "</tr>";
					}
					echo "<tr>";
					echo "<td class='tdheader' style='text-align:right;' colspan='4'>";
					echo "<input type='submit' value='Search' class='btn'/>";
					echo "</td>";
					echo "</tr>";
					echo "</table>";
					echo "</form>";
				}
				break;
			//row actions
			/////////////////////////////////////////////// view row
			case "row_view":
				if(!isset($_POST['startRow']))
					$_POST['startRow'] = 0;

				if(isset($_POST['numRows']))
					$_SESSION[COOKIENAME.'numRows'] = $_POST['numRows'];

				if(!isset($_SESSION[COOKIENAME.'numRows']))
					$_SESSION[COOKIENAME.'numRows'] = 30;
				
				if(isset($_SESSION[COOKIENAME.'currentTable']) && $_SESSION[COOKIENAME.'currentTable']!=$_GET['table'])
				{
					unset($_SESSION[COOKIENAME.'sort']);
					unset($_SESSION[COOKIENAME.'order']);	
				}
				
				$query = "SELECT Count(*) FROM ".$_GET['table'];
				$rowCount = $db->select($query);
				$rowCount = intval($rowCount[0]);
				$lastPage = intval($rowCount / $_SESSION[COOKIENAME.'numRows']);
				$remainder = intval($rowCount % $_SESSION[COOKIENAME.'numRows']);
				if($remainder==0)
					$remainder = $_SESSION[COOKIENAME.'numRows'];
				
				echo "<div style='overflow:hidden;'>";
				//previous button
				if($_POST['startRow']>0)
				{
					echo "<div style='float:left; overflow:hidden;'>";
					echo "<form action='".PAGE."?action=row_view&table=".$_GET['table']."' method='post'>";
					echo "<input type='hidden' name='startRow' value='0'/>";
					echo "<input type='hidden' name='numRows' value='".$_SESSION[COOKIENAME.'numRows']."'/> ";
					echo "<input type='submit' value='&larr;&larr;' name='previous' class='btn'/> ";
					echo "</form>";
					echo "</div>";
					echo "<div style='float:left; overflow:hidden; margin-right:20px;'>";
					echo "<form action='".PAGE."?action=row_view&table=".$_GET['table']."' method='post'>";
					echo "<input type='hidden' name='startRow' value='".intval($_POST['startRow']-$_SESSION[COOKIENAME.'numRows'])."'/>";
					echo "<input type='hidden' name='numRows' value='".$_SESSION[COOKIENAME.'numRows']."'/> ";
					echo "<input type='submit' value='&larr;' name='previous_full' class='btn'/> ";
					echo "</form>";
					echo "</div>";
				}
				
				//show certain number buttons
				echo "<div style='float:left; overflow:hidden;'>";
				echo "<form action='".PAGE."?action=row_view&table=".$_GET['table']."' method='post'>";
				echo "<input type='submit' value='Show : ' name='show' class='btn'/> ";
				echo "<input type='text' name='numRows' style='width:50px;' value='".$_SESSION[COOKIENAME.'numRows']."'/> ";
				echo "row(s) starting from record # ";
				if(intval($_POST['startRow']+$_SESSION[COOKIENAME.'numRows']) < $rowCount)
					echo "<input type='text' name='startRow' style='width:90px;' value='".intval($_POST['startRow']+$_SESSION[COOKIENAME.'numRows'])."'/>";
				else
					echo "<input type='text' name='startRow' style='width:90px;' value='0'/>";
				echo "</form>";
				echo "</div>";
				
				//next button
				if(intval($_POST['startRow']+$_SESSION[COOKIENAME.'numRows'])<$rowCount)
				{
					echo "<div style='float:left; overflow:hidden; margin-left:20px; '>";
					echo "<form action='".PAGE."?action=row_view&table=".$_GET['table']."' method='post'>";
					echo "<input type='hidden' name='startRow' value='".intval($_POST['startRow']+$_SESSION[COOKIENAME.'numRows'])."'/>";
					echo "<input type='hidden' name='numRows' value='".$_SESSION[COOKIENAME.'numRows']."'/> ";
					echo "<input type='submit' value='&rarr;' name='next' class='btn'/> ";
					echo "</form>";
					echo "</div>";
					echo "<div style='float:left; overflow:hidden;'>";
					echo "<form action='".PAGE."?action=row_view&table=".$_GET['table']."' method='post'>";
					echo "<input type='hidden' name='startRow' value='".intval($rowCount-$remainder)."'/>";
					echo "<input type='hidden' name='numRows' value='".$_SESSION[COOKIENAME.'numRows']."'/> ";
					echo "<input type='submit' value='&rarr;&rarr;' name='next_full' class='btn'/> ";
					echo "</form>";
					echo "</div>";
				}
				echo "<div style='clear:both;'></div>";
				echo "</div>";
				
				if(!isset($_GET['sort']))
					$_GET['sort'] = NULL;
				if(!isset($_GET['order']))
					$_GET['order'] = NULL;

				$table = $_GET['table'];
				$numRows = $_SESSION[COOKIENAME.'numRows'];
				$startRow = $_POST['startRow'];
				if(isset($_GET['sort']))
				{
					$_SESSION[COOKIENAME.'sort'] = $_GET['sort'];
					$_SESSION[COOKIENAME.'currentTable'] = $_GET['table'];
				}
				if(isset($_GET['order']))
				{
					$_SESSION[COOKIENAME.'order'] = $_GET['order'];
					$_SESSION[COOKIENAME.'currentTable'] = $_GET['table'];
				}
				$_SESSION[COOKIENAME.'numRows'] = $numRows;
				$query = "SELECT *, ROWID FROM ".$table;
				$queryDisp = "SELECT * FROM ".$table;
				$queryAdd = "";
				if(isset($_SESSION[COOKIENAME.'sort']))
					$queryAdd .= " ORDER BY ".$_SESSION[COOKIENAME.'sort'];
				if(isset($_SESSION[COOKIENAME.'order']))
					$queryAdd .= " ".$_SESSION[COOKIENAME.'order'];
				$queryAdd .= " LIMIT ".$startRow.", ".$numRows;
				$query .= $queryAdd;
				$queryDisp .= $queryAdd;
				$startTime = microtime(true);
				$arr = $db->selectArray($query);
				$endTime = microtime(true);
				$time = round(($endTime - $startTime), 4);
				$total = $db->numRows($table);

				if(sizeof($arr)>0)
				{
					echo "<br/><div class='confirm'>";
					echo "<b>Showing rows ".$startRow." - ".($startRow + sizeof($arr)-1)." (".$total." total, Query took ".$time." sec)</b><br/>";
					echo "<span style='font-size:11px;'>".$queryDisp."</span>";
					echo "</div><br/>";

					echo "<form action='".PAGE."?action=row_editordelete&table=".$table."' method='post' name='checkForm'>";
					echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
					$query = "PRAGMA table_info('".$table."')";
					$result = $db->selectArray($query);
					$rowidColumn = sizeof($result);

					echo "<tr>";
					echo "<td colspan='3'>";
					echo "</td>";

					for($i=0; $i<sizeof($result); $i++)
					{
						echo "<td class='tdheader'>";
						echo "<a href='".PAGE."?action=row_view&table=".$table."&sort=".$result[$i][1];
						if(isset($_SESSION[COOKIENAME.'sort']))
							$orderTag = ($_SESSION[COOKIENAME.'sort']==$result[$i][1] && $_SESSION[COOKIENAME.'order']=="ASC") ? "DESC" : "ASC";
						else
							$orderTag = "ASC";
						echo "&order=".$orderTag;
						echo "'>".$result[$i][1]."</a>";
						if(isset($_SESSION[COOKIENAME.'sort']) && $_SESSION[COOKIENAME.'sort']==$result[$i][1])
							echo (($_SESSION[COOKIENAME.'order']=="ASC") ? " <b>&uarr;</b>" : " <b>&darr;</b>");
						echo "</td>";
					}
					echo "</tr>";

					for($i=0; $i<sizeof($arr); $i++)
					{
						// -g-> $pk will always be the last column in each row of the array because we are doing a "SELECT *, ROWID FROM ..."
						$pk = $arr[$i][$rowidColumn];
						$tdWithClass = "<td class='td".($i%2 ? "1" : "2")."'>";
						$tdWithClassLeft = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;'>";
						echo "<tr>";
						echo $tdWithClass;
						echo "<input type='checkbox' name='check[]' value='".$pk."' id='check_".$i."'/>";
						echo "</td>";
						echo $tdWithClass;
						// -g-> Here, we need to put the ROWID in as the link for both the edit and delete.
						echo "<a href='".PAGE."?table=".$table."&action=row_editordelete&pk=".$pk."&type=edit'>edit</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$table."&action=row_editordelete&pk=".$pk."&type=delete' style='color:red;'>delete</a>";
						echo "</td>";
						for($j=0; $j<sizeof($result); $j++)
						{
							if(strtolower($result[$j][2])=="integer" || strtolower($result[$j][2])=="float" || strtolower($result[$j][2])=="real")
								echo $tdWithClass;
							else
								echo $tdWithClassLeft;
							// -g-> although the inputs do not interpret HTML on the way "in", when we print the contents of the database the interpretation cannot be avoided.
							// di - i don't understand how SQLite returns null values. I played around with the conditional here and couldn't get empty strings to differeniate from actual null values...
							if($arr[$i][$j]==NULL)
								echo "<i>NULL</i>";
							else
								echo $db->formatString($arr[$i][$j]);
							echo "</td>";
						}
						echo "</tr>";
					}
					echo "</table>";
					echo "<a onclick='checkAll()'>Check All</a> / <a onclick='uncheckAll()'>Uncheck All</a> <i>With selected:</i> ";
					echo "<select name='type'>";
					echo "<option value='edit'>Edit</option>";
					echo "<option value='delete'>Delete</option>";
					echo "</select> ";
					echo "<input type='submit' value='Go' name='massGo' class='btn'/>";
					echo "</form>";
				}
				else if($rowCount>0)//no rows - do nothing
				{
					echo "<br/><br/>There are no rows in the table for the range you selected.";
				}
				else
				{
					echo "<br/><br/>This table is empty. <a href='".PAGE."?table=".$_GET['table']."&action=row_create'>Click here</a> to insert rows.";
				}

				break;
			/////////////////////////////////////////////// create row
			case "row_create":
				$fieldStr = "";
				echo "<form action='".PAGE."?table=".$_GET['table']."&action=row_create' method='post'>";
				echo "Restart insertion with ";
				echo "<select name='num'>";
				for($i=1; $i<=40; $i++)
				{
					if(isset($_POST['num']) && $_POST['num']==$i)
						echo "<option value='".$i."' selected='selected'>".$i."</option>";
					else
						echo "<option value='".$i."'>".$i."</option>";
				}
				echo "</select>";
				echo " rows ";
				echo "<input type='submit' value='Go' class='btn'/>";
				echo "</form>";
				echo "<br/>";
				$query = "PRAGMA table_info('".$_GET['table']."')";
				$result = $db->selectArray($query);
				echo "<form action='".PAGE."?table=".$_GET['table']."&action=row_create&confirm=1' method='post'>";
				if(isset($_POST['num']))
					$num = $_POST['num'];
				else
					$num = 1;
				echo "<input type='hidden' name='numRows' value='".$num."'/>";
				for($j=0; $j<$num; $j++)
				{
					if($j>0)
						echo "<input type='checkbox' value='ignore' name='".$j.":ignore' id='".$j."_ignore' checked='checked'/> Ignore<br/>";
					echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
					echo "<tr>";
					echo "<td class='tdheader'>Field</td>";
					echo "<td class='tdheader'>Type</td>";
					echo "<td class='tdheader'>Function</td>";
					echo "<td class='tdheader'>Null</td>";
					echo "<td class='tdheader'>Value</td>";
					echo "</tr>";

					for($i=0; $i<sizeof($result); $i++)
					{
						$field = $result[$i][1];
						if($j==0)
							$fieldStr .= ":".$field;
						$type = strtolower($result[$i][2]);
						$scalarField = $type=="integer" || $type=="real" || $type=="null";
						$tdWithClass = "<td class='td".($i%2 ? "1" : "2")."'>";
						$tdWithClassLeft = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;'>";
						echo "<tr>";
						echo $tdWithClassLeft;
						echo $field;
						echo "</td>";
						echo $tdWithClassLeft;
						echo $type;
						echo "</td>";
						echo $tdWithClassLeft;
						echo "<select name='function_".$j."_".$field."'>";
						echo "<option value=''></option>";
						$functions = unserialize(FUNCTIONS);
						for($z=0; $z<sizeof($functions); $z++)
						{
							echo "<option value='".$functions[$z]."'>".$functions[$z]."</option>";
						}
						echo "</select>";
						echo "</td>";
						//we need to have a column dedicated to nulls -di
						echo $tdWithClassLeft;
						if($result[$i][3]==0)
						{
							if($result[$i][4]==NULL)
								echo "<input type='checkbox' name='".$j.":".$field."_null' id='".$j.":".$field."_null' checked='checked' onclick='disableText(this, \"".$j.":".$field."\");'/>";
							else
								echo "<input type='checkbox' name='".$j.":".$field."_null' id='".$j.":".$field."_null' onclick='disableText(this, \"".$j.":".$field."\");'/>";
						}
						echo "</td>";
						echo $tdWithClassLeft;
						// 22 August 2011: gkf fixed bug #55. The form is now prepopulated with the default values
						//                 so that the insert proceeds normally.
						// 22 August 2011: gkf fixed bug #53. The form now displays more of the text.
						// 19 October 2011: di fixed the bug caused by the previous fix where the null column does not exist anymore
						$type = strtolower($type);
						if($scalarField)
							echo "<input type='text' id='".$j.":".$field."' name='".$j.":".$field."' value='".deQuoteSQL($result[$i][4])."' onblur='changeIgnore(this, \"".$j."_ignore\");' onclick='notNull(\"".$j.":".$field."_null\");'/>";
						else
							echo "<textarea id='".$j.":".$field."' name='".$j.":".$field."' rows='5' cols='60' onclick='notNull(\"".$j.":".$field."_null\");' onblur='changeIgnore(this, \"".$j."_ignore\");'>".deQuoteSQL($result[$i][4])."</textarea>";
            		echo "</td>";
            		echo "</tr>";
					}
					echo "<tr>";
					echo "<td class='tdheader' style='text-align:right;' colspan='5'>";
					echo "<input type='submit' value='Insert' class='btn'/>";
					echo "</td>";
					echo "</tr>";
					echo "</table><br/>";
				}
				$fieldStr = substr($fieldStr, 1);
				echo "<input type='hidden' name='fields' value='".$fieldStr."'/>";
				echo "</form>";
				break;
			/////////////////////////////////////////////// edit or delete row
			case "row_editordelete":
				if(isset($_POST['check']))
					$pks = $_POST['check'];
				else if(isset($_GET['pk']))
					$pks = array($_GET['pk']);
				$str = $pks[0];
				$pkVal = $pks[0];
				for($i=1; $i<sizeof($pks); $i++)
				{
					$str .= ", ".$pks[$i];
					$pkVal .= ":".$pks[$i];
				}
				if($str=="") //nothing was selected so show an error
				{
					echo "<div class='confirm'>";
					echo "Error: You did not select anything.";
					echo "</div>";
					echo "<br/><br/><a href='".PAGE."?table=".$_GET['table']."&action=row_view'>Return</a>";
				}
				else
				{
					if((isset($_POST['type']) && $_POST['type']=="edit") || (isset($_GET['type']) && $_GET['type']=="edit")) //edit
					{
						echo "<form action='".PAGE."?table=".$_GET['table']."&action=row_edit&confirm=1&pk=".$pkVal."' method='post'>";
						$query = "PRAGMA table_info('".$_GET['table']."')";
						$result = $db->selectArray($query);

						//build the POST array of fields
						$fieldStr = $result[0][1];
						for($j=1; $j<sizeof($result); $j++)
							$fieldStr .= ":".$result[$j][1];

						echo "<input type='hidden' name='fieldArray' value='".$fieldStr."'/>";

						for($j=0; $j<sizeof($pks); $j++)
						{
							$query = "SELECT * FROM ".$_GET['table']." WHERE ROWID = ".$pks[$j];
							$result1 = $db->select($query);

							echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
							echo "<tr>";
							echo "<td class='tdheader'>Field</td>";
							echo "<td class='tdheader'>Type</td>";
							echo "<td class='tdheader'>Function</td>";
							echo "<td class='tdheader'>Null</td>";
							echo "<td class='tdheader'>Value</td>";
							echo "</tr>";

							for($i=0; $i<sizeof($result); $i++)
							{
								$field = $result[$i][1];
								$type = $result[$i][2];
								$value = $result1[$i];
								$tdWithClass = "<td class='td".($i%2 ? "1" : "2")."'>";
								$tdWithClassLeft = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;'>";
								echo "<tr>";
								echo $tdWithClass;
								echo $field;
								echo "</td>";
								echo $tdWithClass;
								echo $type;
								echo "</td>";
								echo $tdWithClassLeft;
								echo "<select name='function_".$pks[$j]."_".$field."'>";
								echo "<option value=''></option>";
								$functions = unserialize(FUNCTIONS);
								for($z=0; $z<sizeof($functions); $z++)
								{
									echo "<option value='".$functions[$z]."'>".$functions[$z]."</option>";
								}
								echo "</select>";
								echo "</td>";
								echo $tdWithClassLeft;
								if($result[$i][3]==0)
								{
									if($value==NULL)
										echo "<input type='checkbox' name='".$pks[$j].":".$field."_null' id='".$pks[$j].":".$field."_null' checked='checked'/>";
									else
										echo "<input type='checkbox' name='".$pks[$j].":".$field."_null' id='".$pks[$j].":".$field."_null'/>";
								}
								echo "</td>";
								echo $tdWithClassLeft;
								if($type=="INTEGER" || $type=="REAL" || $type=="NULL")
									echo "<input type='text' name='".$pks[$j].":".$field."' value='".$db->formatString($value)."' onblur='changeIgnore(this, \"".$j."\", \"".$pks[$j].":".$field."_null\")' />";
								else
									echo "<textarea name='".$pks[$j].":".$field."' wrap='hard' rows='1' cols='60' onblur='changeIgnore(this, \"".$j."\", \"".$pks[$j].":".$field."_null\")'>".$db->formatString($value)."</textarea>";
								echo "</td>";
								echo "</tr>";
							}
							echo "<tr>";
							echo "<td class='tdheader' style='text-align:right;' colspan='5'>";
							echo "<input type='submit' value='Save Changes' class='btn'/> ";
							echo "<a href='".PAGE."?table=".$_GET['table']."&action=row_view'>Cancel</a>";
							echo "</td>";
							echo "</tr>";
							echo "</table>";
							echo "<br/>";
						}
						echo "</form>";
					}
					else //delete
					{
						echo "<form action='".PAGE."?table=".$_GET['table']."&action=row_delete&confirm=1&pk=".$pkVal."' method='post'>";
						echo "<div class='confirm'>";
						echo "Are you sure you want to delete row(s) ".$str." from table '".$_GET['table']."'?<br/><br/>";
						echo "<input type='submit' value='Confirm' class='btn'/> ";
						echo "<a href='".PAGE."?table=".$_GET['table']."&action=row_view'>Cancel</a>";
						echo "</div>";
					}
				}
				break;
			//column actions
			/////////////////////////////////////////////// view column
			case "column_view":
				$query = "PRAGMA table_info('".$_GET['table']."')";
				$result = $db->selectArray($query);

				echo "<form action='".PAGE."?table=".$_GET['table']."&action=column_delete' method='post' name='checkForm'>";
				echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
				echo "<tr>";
				echo "<td colspan='2'>";
				echo "</td>";
				echo "<td class='tdheader'>Column #</td>";
				echo "<td class='tdheader'>Field</td>";
				echo "<td class='tdheader'>Type</td>";
				echo "<td class='tdheader'>Not Null</td>";
				echo "<td class='tdheader'>Default Value</td>";
				echo "<td class='tdheader'>Primary Key</td>";
				echo "</tr>";

				for($i=0; $i<sizeof($result); $i++)
				{
					$colVal = $result[$i][0];
					$fieldVal = $result[$i][1];
					$typeVal = $result[$i][2];
					$notnullVal = $result[$i][3];
					$defaultVal = $result[$i][4];
					$primarykeyVal = $result[$i][5];

					if(intval($notnullVal)!=0)
						$notnullVal = "yes";
					else
						$notnullVal = "no";
					if(intval($primarykeyVal)!=0)
						$primarykeyVal = "yes";
					else
						$primarykeyVal = "no";

					$tdWithClass = "<td class='td".($i%2 ? "1" : "2")."'>";
					$tdWithClassLeft = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;'>";
					echo "<tr>";
					echo $tdWithClass;
					echo "<input type='checkbox' name='check[]' value='".$fieldVal."' id='check_".$i."'/>";
					echo "</td>";
					echo $tdWithClass;
					echo "<a href='".PAGE."?table=".$_GET['table']."&action=column_delete&pk=".$fieldVal."' style='color:red;'>delete</a>";
					echo "</td>";
					echo $tdWithClass;
					echo $colVal;
					echo "</td>";
					echo $tdWithClassLeft;
					echo $fieldVal;
					echo "</td>";
					echo $tdWithClassLeft;
					echo $typeVal;
					echo "</td>";
					echo $tdWithClassLeft;
					echo $notnullVal;
					echo "</td>";
					echo $tdWithClassLeft;
					echo $defaultVal;
					echo "</td>";
					echo $tdWithClassLeft;
					echo $primarykeyVal;
					echo "</td>";
					echo "</tr>";
				}

				echo "</table>";

				echo "<a onclick='checkAll()'>Check All</a> / <a onclick='uncheckAll()'>Uncheck All</a> <i>With selected:</i> ";
				echo "<select name='massType'>";
				//echo "<option value='edit'>Edit</option>";
				echo "<option value='delete'>Delete</option>";
				echo "</select> ";
				echo "<input type='hidden' name='structureDel' value='true'/>";
				echo "<input type='submit' value='Go' name='massGo' class='btn'/>";
				echo "</form>";

				echo "<br/>";
				echo "<form action='".PAGE."?table=".$_GET['table']."&action=column_create' method='post'>";
				echo "<input type='hidden' name='tablename' value='".$_GET['table']."'/>";
				echo "Add <input type='text' name='tablefields' style='width:30px;' value='1'/> field(s) at end of table <input type='submit' value='Go' name='addfields' class='btn'/>";
				echo "</form>";
				echo "<br/><hr/><br/>";
				//$query = "SELECT * FROM sqlite_master WHERE type='index' AND tbl_name='".$_GET['table']."'";
				$query = "PRAGMA index_list(".$_GET['table'].")";
				$result = $db->selectArray($query);
				if(sizeof($result)>0)
				{
					echo "<h2>Indexes:</h2>";
					echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
					echo "<tr>";
					echo "<td colspan='1'>";
					echo "</td>";
					echo "<td class='tdheader'>Name</td>";
					echo "<td class='tdheader'>Unique</td>";
					echo "<td class='tdheader'>Seq. No.</td>";
					echo "<td class='tdheader'>Column #</td>";
					echo "<td class='tdheader'>Field</td>";
					echo "</tr>";
					for($i=0; $i<sizeof($result); $i++)
					{
						if($result[$i]['unique']==0)
							$unique = "no";
						else
							$unique = "yes";

						$query = "PRAGMA index_info(".$result[$i]['name'].")";
						$info = $db->selectArray($query);
						$span = sizeof($info);

						$tdWithClass = "<td class='td".($i%2 ? "1" : "2")."'>";
						$tdWithClassLeft = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;'>";
						$tdWithClassSpan = "<td class='td".($i%2 ? "1" : "2")."' rowspan='".$span."'>";
						$tdWithClassLeftSpan = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;' rowspan='".$span."'>";
						echo "<tr>";
						echo $tdWithClassSpan;
						echo "<a href='".PAGE."?table=".$_GET['table']."&action=index_delete&pk=".$result[$i]['name']."' style='color:red;'>delete</a>";
						echo "</td>";
						echo $tdWithClassLeftSpan;
						echo $result[$i]['name'];
						echo "</td>";
						echo $tdWithClassLeftSpan;
						echo $unique;
						echo "</td>";
						for($j=0; $j<$span; $j++)
						{
							if($j!=0)
								echo "<tr>";
							echo $tdWithClassLeft;
							echo $info[$j]['seqno'];
							echo "</td>";
							echo $tdWithClassLeft;
							echo $info[$j]['cid'];
							echo "</td>";
							echo $tdWithClassLeft;
							echo $info[$j]['name'];
							echo "</td>";
							echo "</tr>";
						}
					}
					echo "</table>";
				}
				echo "<form action='".PAGE."?table=".$_GET['table']."&action=index_create' method='post'>";
				echo "<input type='hidden' name='tablename' value='".$_GET['table']."'/>";
				echo "<br/><div class='tdheader'>";
				echo "Create an index on <input type='text' name='numcolumns' style='width:30px;' value='1'/> columns <input type='submit' value='Go' name='addindex' class='btn'/>";
				echo "</div>";
				echo "</form>";
				break;
			/////////////////////////////////////////////// create column
			case "column_create":
				echo "<h2>Adding new field(s) to table '".$_POST['tablename']."'</h2>";
				if($_POST['tablefields']=="" || intval($_POST['tablefields'])<=0)
					echo "You must specify the number of table fields.";
				else if($_POST['tablename']=="")
					echo "You must specify a table name.";
				else
				{
					$num = intval($_POST['tablefields']);
					$name = $_POST['tablename'];
					echo "<form action='".PAGE."?table=".$_POST['tablename']."&action=column_create&confirm=1' method='post'>";
					echo "<input type='hidden' name='tablename' value='".$name."'/>";
					echo "<input type='hidden' name='rows' value='".$num."'/>";
					echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
					echo "<tr>";
					$headings = array("Field", "Type", "Primary Key", "Autoincrement", "Not NULL", "Default Value");
      			for($k=0; $k<count($headings); $k++)
						echo "<td class='tdheader'>" . $headings[$k] . "</td>";
					echo "</tr>";

					for($i=0; $i<$num; $i++)
					{
						$tdWithClass = "<td class='td" . ($i%2 ? "1" : "2") . "'>";
						echo "<tr>";
						echo $tdWithClass;
						echo "<input type='text' name='".$i."_field' style='width:200px;'/>";
						echo "</td>";
						echo $tdWithClass;
						echo "<select name='".$i."_type' id='".$i."_type' onchange='toggleAutoincrement(".$i.");'>";
						$types = unserialize(DATATYPES);
						for($z=0; $z<sizeof($types); $z++)
							echo "<option value='".$types[$z]."'>".$types[$z]."</option>";
						echo "</select>";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='checkbox' name='".$i."_primarykey'/> Yes";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='checkbox' name='".$i."_autoincrement' id='".$i."_autoincrement'/> Yes";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='checkbox' name='".$i."_notnull'/> Yes";
						echo "</td>";
						echo $tdWithClass;
						echo "<input type='text' name='".$i."_defaultvalue' style='width:100px;'/>";
						echo "</td>";
						echo "</tr>";
					}
					echo "<tr>";
					echo "<td class='tdheader' style='text-align:right;' colspan='6'>";
					echo "<input type='submit' value='Add Field(s)' class='btn'/> ";
					echo "<a href='".PAGE."?table=".$_POST['tablename']."&action=column_view'>Cancel</a>";
					echo "</td>";
					echo "</tr>";
					echo "</table>";
					echo "</form>";
				}
				break;
			/////////////////////////////////////////////// delete column
			case "column_delete":
				if(isset($_POST['check']))
					$pks = $_POST['check'];
				else if(isset($_GET['pk']))
					$pks = array($_GET['pk']);
				$str = $pks[0];
				$pkVal = $pks[0];
				for($i=1; $i<sizeof($pks); $i++)
				{
					$str .= ", ".$pks[$i];
					$pkVal .= ":".$pks[$i];
				}
				if($str=="") //nothing was selected so show an error
				{
					echo "<div class='confirm'>";
					echo "Error: You did not select anything.";
					echo "</div>";
					echo "<br/><br/><a href='".PAGE."?table=".$_GET['table']."&action=column_view'>Return</a>";
				}
				else
				{
					echo "<form action='".PAGE."?table=".$_GET['table']."&action=column_delete&confirm=1&pk=".$pkVal."' method='post'>";
					echo "<div class='confirm'>";
					echo "Are you sure you want to delete column(s) ".$str." from table '".$_GET['table']."'?<br/><br/>";
					echo "<input type='submit' value='Confirm' class='btn'/> ";
					echo "<a href='".PAGE."?table=".$_GET['table']."&action=column_view'>Cancel</a>";
					echo "</div>";
				}
				break;
			/////////////////////////////////////////////// edit column
			case "column_edit":
				//this section will contain the code for editing a column
				break;
			/////////////////////////////////////////////// delete index
			case "index_delete":
				echo "<form action='".PAGE."?table=".$_GET['table']."&action=index_delete&pk=".$_GET['pk']."&confirm=1' method='post'>";
				echo "<div class='confirm'>";
				echo "Are you sure you want to delete index '".$_GET['pk']."'?<br/><br/>";
				echo "<input type='submit' value='Confirm' class='btn'/> ";
				echo "<a href='".PAGE."?table=".$_GET['table']."&action=column_view'>Cancel</a>";
				echo "</div>";
				echo "</form>";
				break;
			/////////////////////////////////////////////// create index
			case "index_create":
				echo "<h2>Creating new index on table '".$_POST['tablename']."'</h2>";
				if($_POST['numcolumns']=="" || intval($_POST['numcolumns'])<=0)
					echo "You must specify the number of table fields.";
				else if($_POST['tablename']=="")
					echo "You must specify a table name.";
				else
				{
					echo "<form action='".PAGE."?table=".$_POST['tablename']."&action=index_create&confirm=1' method='post'>";
					$num = intval($_POST['numcolumns']);
					$query = "PRAGMA table_info('".$_POST['tablename']."')";
					$result = $db->selectArray($query);
					echo "<fieldset><legend>Define index properties</legend>";
					echo "Index name: <input type='text' name='name'/><br/>";
					echo "Duplicate values: ";
					echo "<select name='duplicate'>";
					echo "<option value='yes'>Allowed</option>";
					echo "<option value='no'>Not Allowed</option>";
					echo "</select><br/>";
					echo "</fieldset>";
					echo "<br/>";
					echo "<fieldset><legend>Define index columns</legend>";
					for($i=0; $i<$num; $i++)
					{
						echo "<select name='".$i."_field'>";
						echo "<option value=''>--Ignore--</option>";
						for($j=0; $j<sizeof($result); $j++)
							echo "<option value='".$result[$j][1]."'>".$result[$j][1]."</option>";
						echo "</select> ";
						echo "<select name='".$i."_order'>";
						echo "<option value=''></option>";
						echo "<option value=' ASC'>Ascending</option>";
						echo "<option value=' DESC'>Descending</option>";
						echo "</select><br/>";
					}
					echo "</fieldset>";
					echo "<br/><br/>";
					echo "<input type='hidden' name='num' value='".$num."'/>";
					echo "<input type='submit' value='Create Index' class='btn'/> ";
					echo "<a href='".PAGE."?table=".$_POST['tablename']."&action=column_view'>Cancel</a>";
					echo "</form>";
				}
				break;
		}
		echo "</div>";
	}
	$view = "structure";
	if(!isset($_GET['table']) && !isset($_GET['confirm']) && (!isset($_GET['action']) || (isset($_GET['action']) && $_GET['action']!="table_create"))) //the absence of these fields means we are viewing the database homepage
	{
		if(isset($_GET['view']))
			$view = $_GET['view'];
		else
			$view = "structure";

		echo "<a href='".PAGE."?view=structure' ";
		if($view=="structure")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Structure</a>";
		echo "<a href='".PAGE."?view=sql' ";
		if($view=="sql")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">SQL</a>";
		echo "<a href='".PAGE."?view=export' ";
		if($view=="export")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Export</a>";
		echo "<a href='".PAGE."?view=import' ";
		if($view=="import")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Import</a>";
		echo "<a href='".PAGE."?view=vacuum' ";
		if($view=="vacuum")
			echo "class='tab_pressed'";
		else
			echo "class='tab'";
		echo ">Vacuum</a>";
		echo "<div style='clear:both;'></div>";
		echo "<div id='main'>";

		if($view=="structure") //database structure - view of all the tables
		{
			$query = "SELECT sqlite_version() AS sqlite_version";
			$queryVersion = $db->select($query);
			$realVersion = $queryVersion['sqlite_version'];
			
			echo "<b>Database name</b>: ".$db->getName()."<br/>";
			echo "<b>Path to database</b>: ".$db->getPath()."<br/>";
			echo "<b>Size of database</b>: ".$db->getSize()."<br/>";
			echo "<b>Database last modified</b>: ".$db->getDate()."<br/>";
			echo "<b>SQLite version</b>: ".$realVersion."<br/>";
			echo "<b>SQLite extension</b>: ".$db->getType()."<br/>";
			echo "<b>PHP version</b>: ".phpversion()."<br/><br/>";

			$query = "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name";
			$result = $db->selectArray($query);

			$j = 0;
			for($i=0; $i<sizeof($result); $i++)
				if(substr($result[$i]['name'], 0, 7)!="sqlite_" && $result[$i]['name']!="")
					$j++;

			if($j==0)
				echo "No tables in database.<br/><br/>";
			else
			{
				echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
				echo "<tr>";
				echo "<td class='tdheader'>Table</td>";
				echo "<td class='tdheader' colspan='10'>Action</td>";
				echo "<td class='tdheader'>Records</td>";
				echo "</tr>";
				
				$totalRecords = 0;
				for($i=0; $i<sizeof($result); $i++)
				{
					if(substr($result[$i]['name'], 0, 7)!="sqlite_" && $result[$i]['name']!="")
					{
						$records = $db->numRows($result[$i]['name']);
						$totalRecords += $records;
						$tdWithClass = "<td class='td".($i%2 ? "1" : "2")."'>";
						$tdWithClassLeft = "<td class='td".($i%2 ? "1" : "2")."' style='text-align:left;'>";
						
						echo "<tr>";
						echo $tdWithClassLeft;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=row_view'>".$result[$i]['name']."</a><br/>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=row_view'>Browse</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=column_view'>Structure</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=table_sql'>SQL</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=table_search'>Search</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=row_create'>Insert</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=table_export'>Export</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=table_import'>Import</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=table_rename'>Rename</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=table_empty' style='color:red;'>Empty</a>";
						echo "</td>";
						echo $tdWithClass;
						echo "<a href='".PAGE."?table=".$result[$i]['name']."&action=table_drop' style='color:red;'>Drop</a>";
						echo "</td>";
						echo $tdWithClass;
						echo $records;
						echo "</td>";
						echo "</tr>";
					}
				}
				echo "<tr>";
				echo "<td class='tdheader' colspan='11'>".sizeof($result)." table(s) total</td>";
				echo "<td class='tdheader' colspan='1' style='text-align:right;'>".$totalRecords."</td>";
				echo "</tr>";
				echo "</table>";
				echo "<br/>";
			}
			echo "<fieldset>";
			echo "<legend><b>Create new table on database '".$db->getName()."'</b></legend>";
			echo "<form action='".PAGE."?action=table_create' method='post'>";
			echo "Name: <input type='text' name='tablename' style='width:200px;'/> ";
			echo "Number of Fields: <input type='text' name='tablefields' style='width:90px;'/> ";
			echo "<input type='submit' name='createtable' value='Go' class='btn'/>";
			echo "</form>";
			echo "</fieldset>";
		}
		else if($view=="sql") //database SQL editor
		{
			$isSelect = false;
			if(isset($_POST['query']) && $_POST['query']!="")
			{
				$delimiter = $_POST['delimiter'];
				$queryStr = stripslashes($_POST['queryval']);
				$query = explode($delimiter, $queryStr); //explode the query string into individual queries based on the delimiter

				for($i=0; $i<sizeof($query); $i++) //iterate through the queries exploded by the delimiter
				{
					if(str_replace(" ", "", str_replace("\n", "", str_replace("\r", "", $query[$i])))!="") //make sure this query is not an empty string
					{
						$startTime = microtime(true);
						if(strpos(strtolower($query[$i]), "select ")!==false)
						{
							$isSelect = true;
							$result = $db->selectArray($query[$i], "assoc");
						}
						else
						{
							$isSelect = false;
							$result = $db->query($query[$i]);
						}
						$endTime = microtime(true);
						$time = round(($endTime - $startTime), 4);

						echo "<div class='confirm'>";
						echo "<b>";
						// 22 August 2011: gkf fixed bugs 46, 51 and 52.
						if($isSelect && $result >= 0)
						{
							if($isSelect)
							{
								$affected = sizeof($result);
								echo "Showing ".$affected." row(s). ";
							}
							else
							{
								$affected = $db->getAffectedRows();
								echo $affected." row(s) affected. ";
							}
							echo "(Query took ".$time." sec)</b><br/>";
						}
						else
						{
							echo "There is a problem with the syntax of your query ";
							echo "(Query was not executed)</b><br/>";
						}
						echo "<span style='font-size:11px;'>".$query[$i]."</span>";
						echo "</div><br/>";
						if($isSelect)
						{
							if(sizeof($result)>0)
							{
								$headers = array_keys($result[0]);

								echo "<table border='0' cellpadding='2' cellspacing='1' class='viewTable'>";
								echo "<tr>";
								for($j=0; $j<sizeof($headers); $j++)
								{
									echo "<td class='tdheader'>";
									echo $headers[$j];
									echo "</td>";
								}
								echo "</tr>";
								for($j=0; $j<sizeof($result); $j++)
								{
									$tdWithClass = "<td class='td".($j%2 ? "1" : "2")."'>";
									echo "<tr>";
									for($z=0; $z<sizeof($headers); $z++)
									{
										echo $tdWithClass;
										echo $result[$j][$headers[$z]];
										echo "</td>";
									}
									echo "</tr>";
								}
								echo "</table><br/><br/>";
							}
						}
					}
				}
			}
			else
			{
				$delimiter = ";";
				$queryStr = "";
			}

			echo "<fieldset>";
			echo "<legend><b>Run SQL query/queries on database '".$db->getName()."'</b></legend>";
			echo "<form action='".PAGE."?view=sql' method='post'>";
			echo "<textarea style='width:100%; height:300px;' name='queryval'>".$queryStr."</textarea>";
			echo "Delimiter <input type='text' name='delimiter' value='".$delimiter."' style='width:50px;'/> ";
			echo "<input type='submit' name='query' value='Go' class='btn'/>";
			echo "</form>";
		}
		else if($view=="vacuum")
		{
			if(isset($_POST['vacuum']))
			{
				$query = "VACUUM";
				$db->query($query);
				echo "<div class='confirm'>";
				echo "The database, '".$db->getName()."', has been VACUUMed.";
				echo "</div><br/>";
			}
			echo "<form method='post' action='".PAGE."?view=vacuum'>";
			echo "Large databases sometimes need to be VACUUMed to reduce their footprint on the server. Click the button below to VACUUM the database, '".$db->getName()."'.";
			echo "<br/><br/>";
			echo "<input type='submit' value='VACUUM' name='vacuum' class='btn'/>";
			echo "</form>";
		}
		else if($view=="export")
		{
			echo "<form method='post' action='".PAGE."?view=export'>";
			echo "<fieldset style='float:left; width:260px; margin-right:20px;'><legend><b>Export</b></legend>";
			echo "<select multiple='multiple' size='10' style='width:240px;' name='tables[]'>";
			$query = "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name";
			$result = $db->selectArray($query);
			for($i=0; $i<sizeof($result); $i++)
			{
				if(substr($result[$i]['name'], 0, 7)!="sqlite_" && $result[$i]['name']!="")
					echo "<option value='".$result[$i]['name']."' selected='selected'>".$result[$i]['name']."</option>";
			}
			echo "</select>";
			echo "<br/><br/>";
			echo "<input type='radio' name='export_type' checked='checked' value='sql'/> SQL";
			echo "</fieldset>";
			echo "<fieldset style='float:left;'><legend><b>Options</b></legend>";
			echo "<input type='checkbox' checked='checked' name='structure'/> Export with structure [<a onmouseover='tooltip.show(\"Creates the queries to add the tables and their columns\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
			echo "<input type='checkbox' checked='checked' name='data'/> Export with data [<a onmouseover='tooltip.show(\"Creates the queries to insert the table rows\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
			echo "<input type='checkbox' name='drop'/> Add DROP TABLE [<a onmouseover='tooltip.show(\"Creates the queries to remove the tables before potentially adding them so that errors do not occur if they already exist\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
			echo "<input type='checkbox' checked='checked' name='transaction'/> Add TRANSACTION [<a onmouseover='tooltip.show(\"Performs queries within transactions so that if an error occurs, the table is not returned to a partially incomplete and unusable state\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
			echo "<input type='checkbox' checked='checked' name='comments'/> Comments [<a onmouseover='tooltip.show(\"Adds comments to the file to explain what is happening in each part of it\");' onmouseout='tooltip.hide();'>?</a>]<br/>";
			echo "</fieldset>";
			echo "<div style='clear:both;'></div>";
			echo "<br/><br/>";
			echo "<fieldset style='float:left;'><legend><b>Save As</b></legend>";
			echo "<input type='hidden' name='database_num' value='".$_SESSION[COOKIENAME.'currentDB']."'/>";
			$file = pathinfo($db->getPath());
			$name = $file['filename'];
			echo "<input type='text' name='filename' value='".$name.".".date("n-j-y").".dump' style='width:400px;'/> <input type='submit' name='export' value='Export' class='btn'/>";
			echo "</fieldset>";
			echo "</form>";
		}
		else if($view=="import")
		{
			if(isset($_POST['import']))
			{
				echo "<div class='confirm'>";
				echo "Import was successful.";
				echo "</div><br/>";
			}
			echo "<form method='post' action='".PAGE."?view=import' enctype='multipart/form-data'>";
			echo "<fieldset><legend><b>File to import</b></legend>";
			echo "<input type='radio' name='export_type' checked='checked' value='sql'/> SQL";
			echo "<br/><br/>";
			echo "<input type='file' value='Choose File' name='file' style='background-color:transparent; border-style:none;'/> <input type='submit' value='Import' name='import' class='btn'/>";
			echo "</fieldset>";
		}

		echo "</div>";
	}

	echo "<br/>";
	$endTimeTot = microtime(true); //get the current time at this point in the execution
	$timeTot = round(($endTimeTot - $startTimeTot), 4); //calculate the total time for page load
	echo "<span style='font-size:11px;'>Powered by <a href='http://code.google.com/p/phpliteadmin/' target='_blank' style='font-size:11px;'>".PROJECT."</a> | Page generated in ".$timeTot." seconds.</span>";
	echo "</div>";
	echo "</div>";
	$db->close(); //close the database
}
echo "</body>";
echo "</html>";

?>