function getSampleData($row)
{
$data = array();
$data['user_name'] = 'user_' . $row;
$data['user_password'] = '******';
$data['subscribed'] = $row % 2 ? true : false;
$data['user_id'] = $row;
$data['quota'] = strval($row / 100);
$data['weight'] = sqrt($row);
$data['access_date'] = MDB2_Date::mdbToday();
$data['access_time'] = MDB2_Date::mdbTime();
$data['approved'] = MDB2_Date::mdbNow();
return $data;
}
function isInYear($year, $field)
{
// The value of $year is got from get variable, so we must chech that it
// is really a integer with correct value
if (!is_int(intval($year)) || $year < 2000) {
$this->debugger->error("The year value is not correct", "isInYear");
}
$yearStarts = mktime(0, 0, 0, 1, 1, $year);
$yearEnds = mktime(0, 0, 0, 1, 1, $year + 1);
return " {$field} >= '" . MDB2_Date::unix2Mdbstamp($yearStarts) . "' AND {$field} < '" . MDB2_Date::unix2Mdbstamp($yearEnds) . "' ";
}
/**
* Test replace query
*
* The replace method emulates the replace query of mysql
*/
function testReplace()
{
if (!$this->supported('replace')) {
return;
}
$row = 1234;
$data = $this->getSampleData($row);
$fields = array('user_name' => array('value' => "user_{$row}", 'type' => 'text'), 'user_password' => array('value' => $data['user_password'], 'type' => 'text'), 'subscribed' => array('value' => $data['subscribed'], 'type' => 'boolean'), 'user_id' => array('value' => $data['user_id'], 'type' => 'integer', 'key' => 1), 'quota' => array('value' => $data['quota'], 'type' => 'decimal'), 'weight' => array('value' => $data['weight'], 'type' => 'float'), 'access_date' => array('value' => $data['access_date'], 'type' => 'date'), 'access_time' => array('value' => $data['access_time'], 'type' => 'time'), 'approved' => array('value' => $data['approved'], 'type' => 'timestamp'));
$result = $this->db->replace('users', $fields);
if (PEAR::isError($result)) {
$this->assertTrue(false, 'Replace failed');
}
if ($this->db->supports('affected_rows')) {
$affected_rows = $result;
$this->assertEquals(1, $result, "replacing a row in an empty table returned incorrect value");
}
$result =& $this->db->query('SELECT ' . implode(', ', array_keys($this->fields)) . ' FROM users', $this->fields);
if (PEAR::isError($result)) {
$this->assertTrue(false, 'Error selecting from users' . $result->getMessage());
}
$this->verifyFetchedValues($result, 0, $data);
$row = 4321;
$fields['user_name']['value'] = $data['user_name'] = 'user_' . $row;
$fields['user_password']['value'] = $data['user_password'] = '******';
$fields['subscribed']['value'] = $data['subscribed'] = $row % 2 ? true : false;
$fields['quota']['value'] = $data['quota'] = strval($row / 100);
$fields['weight']['value'] = $data['weight'] = sqrt($row);
$fields['access_date']['value'] = $data['access_date'] = MDB2_Date::mdbToday();
$fields['access_time']['value'] = $data['access_time'] = MDB2_Date::mdbTime();
$fields['approved']['value'] = $data['approved'] = MDB2_Date::mdbNow();
$result = $this->db->replace('users', $fields);
if (PEAR::isError($result)) {
$this->assertTrue(false, 'Replace failed');
}
if ($this->db->supports('affected_rows')) {
$this->assertEquals(2, $result, "replacing a row returned incorrect result");
}
$result =& $this->db->query('SELECT ' . implode(', ', array_keys($this->fields)) . ' FROM users', $this->fields);
if (PEAR::isError($result)) {
$this->assertTrue(false, 'Error selecting from users' . $result->getMessage());
}
$this->verifyFetchedValues($result, 0, $data);
$this->assertTrue(!$result->valid(), 'the query result did not seem to have reached the end of result as expected');
$result->free();
}
/**
* convert a MDB2 timestamp into a unix timestamp
*
* @param integer $mdb_timestamp a valid MDB2 timestamp
* @return string unix timestamp with the time stored in the MDB2 format
* @access public
*/
function mdbstamp2Unix($mdb_timestamp)
{
$arr = MDB2_Date::mdbstamp2Date($mdb_timestamp);
return mktime($arr['hour'], $arr['minute'], $arr['second'], $arr['month'], $arr['day'], $arr['year'], 0);
}
/**
* http://pear.php.net/bugs/bug.php?id=946
*/
function testBug946()
{
$data = array();
$total_rows = 5;
$prepared_query = $this->db->prepare('INSERT INTO users (user_name, user_password, subscribed, user_id, quota, weight, access_date, access_time, approved) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)', $this->types);
for ($row = 0; $row < $total_rows; $row++) {
$data[$row]['user_name'] = "user_{$row}";
$data[$row]['user_password'] = '******';
$data[$row]['subscribed'] = (bool) ($row % 2);
$data[$row]['user_id'] = $row;
$data[$row]['quota'] = sprintf("%.2f", strval(1 + ($row + 1) / 100));
$data[$row]['weight'] = sqrt($row);
$data[$row]['access_date'] = MDB2_Date::mdbToday();
$data[$row]['access_time'] = MDB2_Date::mdbTime();
$data[$row]['approved'] = MDB2_Date::mdbNow();
$this->insertTestValues($prepared_query, $data[$row]);
$result = $this->db->execute($prepared_query);
if (MDB2::isError($result)) {
$this->assertTrue(false, 'Error executing prepared query' . $result->getMessage());
}
}
$this->db->freePrepared($prepared_query);
$this->db->setLimit(3, 1);
$result = $this->db->query('SELECT * FROM users');
$numrows = $result->numRows();
while ($row = $result->fetchRow()) {
if (MDB2::isError($row)) {
$this->assertTrue(false, 'Error fetching a row' . $row->getMessage());
}
}
$result->free();
$result = $this->db->query('SELECT * FROM users');
$numrows = $result->numRows();
while ($row = $result->fetchRow()) {
if (MDB2::isError($row)) {
$this->assertTrue(false, 'Error fetching a row' . $row->getMessage());
}
}
$result->free();
}
/**
* LiveUser_Auth_Container_MDB2::readUserData()
*
* Reads auth_user_id, passwd, is_active flag
* lastlogin timestamp from the database
* If only $handle is given, it will read the data
* from the first user with that handle and return
* true on success.
* If $handle and $passwd are given, it will try to
* find the first user with both handle and password
* matching and return true on success (this allows
* multiple users having the same handle but different
* passwords - yep, some people want this).
* If no match is found, false is being returned.
*
* @param string $handle
* @param boolean $passwd
* @return boolean
*/
function readUserData($handle, $passwd = false)
{
if (!$this->init_ok) {
return false;
}
$success = false;
$fields = array();
foreach ($this->authTableCols as $key => $value) {
$fields[] = $value['name'] . ' AS ' . $key;
$types[] = $value['type'];
}
if ($passwd !== false) {
// If $passwd is set, try to find the first user with the given
// handle and password.
$sql = 'SELECT ' . implode(',', $fields) . '
FROM ' . $this->authTable . '
WHERE ' . $this->authTableCols['handle']['name'] . '=' . $this->dbc->quote($handle, $this->authTableCols['handle']['type']) . '
AND ' . $this->authTableCols['passwd']['name'] . '=' . $this->dbc->quote($this->encryptPW($passwd), $this->authTableCols['passwd']['type']);
} else {
// If only $handle is set, try to find the first matching user
$sql = 'SELECT ' . implode(',', $fields) . '
FROM ' . $this->authTable . '
WHERE ' . $this->authTableCols['handle']['name'] . '=' . $this->dbc->quote($handle, $this->authTableCols['handle']['type']);
}
// Query database
$result = $this->dbc->queryRow($sql, $types, MDB2_FETCHMODE_ASSOC);
// If a user was found, read data into class variables and set
// return value to true
if (!MDB2::isError($result) && is_array($result)) {
$this->handle = $result['handle'];
$this->passwd = $this->decryptPW($result['passwd']);
$this->isActive = !isset($result['is_active']) || $result['is_active'] ? true : false;
$this->authUserId = $result['user_id'];
$this->lastLogin = !empty($result['lastlogin']) ? MDB2_Date::mdbstamp2Unix($result['lastlogin']) : '';
$success = true;
}
return $success;
}
/**
* Inserts $message to the currently open database. Calls open(),
* if necessary. Also passes the message along to any Log_observer
* instances that are observing this Log.
*
* @param mixed $message String or object containing the message to log.
* @param string $priority The priority of the message. Valid
* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
* @return boolean True on success or false on failure.
* @access public
*/
function log($message, $priority = null)
{
/* If a priority hasn't been specified, use the default value. */
if ($priority === null) {
$priority = $this->_priority;
}
/* Abort early if the priority is above the maximum logging level. */
if (!$this->_isMasked($priority)) {
return false;
}
/* If the connection isn't open and can't be opened, return failure. */
if (!$this->_opened && !$this->open()) {
return false;
}
/* If we don't already have a statement object, create one. */
if (!is_object($this->_statement) && !$this->_prepareStatement()) {
return false;
}
/* Extract the string representation of the message. */
$message = $this->_extractMessage($message);
/* Build our set of values for this log entry. */
$values = array('id' => $this->_db->nextId($this->_sequence), 'logtime' => MDB2_Date::mdbNow(), 'ident' => $this->_ident, 'priority' => $priority, 'message' => $message);
/* Execute the SQL query for this log entry insertion. */
$this->_db->expectError(MDB2_ERROR_NOSUCHTABLE);
$result =& $this->_statement->execute($values);
$this->_db->popExpect();
/* Attempt to handle any errors. */
if (PEAR::isError($result)) {
/* We can only handle MDB2_ERROR_NOSUCHTABLE errors. */
if ($result->getCode() != MDB2_ERROR_NOSUCHTABLE) {
return false;
}
/* Attempt to create the target table. */
if (!$this->_createTable()) {
return false;
}
/* Recreate our prepared statement resource. */
$this->_statement->free();
if (!$this->_prepareStatement()) {
return false;
}
/* Attempt to re-execute the insertion query. */
$result = $this->_statement->execute($values);
if (PEAR::isError($result)) {
return false;
}
}
$this->_announce(array('priority' => $priority, 'message' => $message));
return true;
}
/**
* Test replace query
*
* The replace method emulates the replace query of mysql
*
* @dataProvider provider
*/
public function testReplace($ci)
{
$this->manualSetUp($ci);
if (!$this->supported('replace')) {
$this->markTestSkipped('REPLACE not supported');
}
$row = 1234;
$data = $this->getSampleData($row);
$fields = array('user_name' => array('value' => "user_{$row}", 'type' => 'text'), 'user_password' => array('value' => $data['user_password'], 'type' => 'text'), 'subscribed' => array('value' => $data['subscribed'], 'type' => 'boolean'), 'user_id' => array('value' => $data['user_id'], 'type' => 'integer', 'key' => 1), 'quota' => array('value' => $data['quota'], 'type' => 'decimal'), 'weight' => array('value' => $data['weight'], 'type' => 'float'), 'access_date' => array('value' => $data['access_date'], 'type' => 'date'), 'access_time' => array('value' => $data['access_time'], 'type' => 'time'), 'approved' => array('value' => $data['approved'], 'type' => 'timestamp'));
$result = $this->db->replace($this->table_users, $fields);
if (MDB2::isError($result)) {
$this->fail('Replace failed');
}
if ($this->db->supports('affected_rows')) {
$this->assertEquals(1, $result, "replacing a row in an empty table returned incorrect value");
}
$query = 'SELECT ' . implode(', ', array_keys($this->fields)) . ' FROM ' . $this->table_users;
$result = $this->db->query($query, $this->fields);
if (MDB2::isError($result)) {
$this->fail('Error selecting from users' . $result->getUserInfo());
}
$this->verifyFetchedValues($result, 0, $data);
$row = 4321;
$fields['user_name']['value'] = $data['user_name'] = 'user_' . $row;
$fields['user_password']['value'] = $data['user_password'] = '******';
$fields['subscribed']['value'] = $data['subscribed'] = $row % 2 ? true : false;
$fields['quota']['value'] = $data['quota'] = strval($row / 100);
$fields['weight']['value'] = $data['weight'] = sqrt($row);
$fields['access_date']['value'] = $data['access_date'] = MDB2_Date::mdbToday();
$fields['access_time']['value'] = $data['access_time'] = MDB2_Date::mdbTime();
$fields['approved']['value'] = $data['approved'] = MDB2_Date::mdbNow();
$result = $this->db->replace($this->table_users, $fields);
if (MDB2::isError($result)) {
$this->fail('Replace failed');
}
if ($this->db->supports('affected_rows')) {
switch ($this->db->phptype) {
case 'sqlite':
$expect = 1;
break;
default:
$expect = 2;
}
$this->assertEquals($expect, $result, "replacing a row returned incorrect result");
}
$query = 'SELECT ' . implode(', ', array_keys($this->fields)) . ' FROM ' . $this->table_users;
$result = $this->db->query($query, $this->fields);
if (MDB2::isError($result)) {
$this->fail('Error selecting from users' . $result->getUserInfo());
}
$this->verifyFetchedValues($result, 0, $data);
$this->assertTrue(!$result->valid(), 'the query result did not seem to have reached the end of result as expected');
$result->free();
}
public function acquireLock($type = '')
{
if ($this->haveLock($type)) {
return TRUE;
}
if (!$this->canAcquireLock()) {
return FALSE;
}
$db =& $GLOBALS['db'];
$sql = 'INSERT INTO db_object_lock (objectid, object_type, lock_type, userid, expires)
VALUES (
' . $db->quote($this->id) . ',
' . $db->quote(strtolower(get_class($this))) . ',
' . $db->quote($type) . ',
' . $db->quote($this->getCurrentUser('id')) . ',
' . $db->quote(MDB2_Date::unix2Mdbstamp(strtotime('+' . LOCK_LENGTH))) . ')';
$res = $db->query($sql);
check_db_result($res);
$this->_held_locks[$type] = TRUE;
$this->_acquirable_locks[$type] = TRUE;
if (rand(LOCK_CLEANUP_PROBABLILITY, 100) == 100) {
$sql = 'DELETE FROM db_object_lock
WHERE expires < ' . $db->quote(MDB2_Date::unix2Mdbstamp(time()));
$res = $db->query($sql);
check_db_result($res);
}
return TRUE;
}
/**
* Testing transaction support
*/
function testTransactions()
{
if (!$this->supported('transactions')) {
return;
}
$this->db->autoCommit(0);
$row = 0;
$data = array();
$data['user_name'] = "user_{$row}";
$data['user_password'] = '******';
$data['subscribed'] = $row % 2 ? true : false;
$data['user_id'] = $row;
$data['quota'] = strval($row / 100);
$data['weight'] = sqrt($row);
$data['access_date'] = MDB2_Date::mdbToday();
$data['access_time'] = MDB2_Date::mdbTime();
$data['approved'] = MDB2_Date::mdbNow();
$prepared_query = $this->db->prepare('INSERT INTO users (user_name, user_password, subscribed, user_id, quota, weight, access_date, access_time, approved) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)', $this->types);
$this->insertTestValues($prepared_query, $data);
$result = $this->db->execute($prepared_query);
$this->db->rollback();
$result =& $this->db->query('SELECT * FROM users');
if (MDB2::isError($result)) {
$this->assertTrue(false, 'Error selecting from users' . $result->getMessage());
}
$this->assertTrue(!$result->valid(), 'Transaction rollback did not revert the row that was inserted');
$result->free();
$this->insertTestValues($prepared_query, $data);
$result = $this->db->execute($prepared_query);
$this->db->commit();
$result =& $this->db->query('SELECT * FROM users');
if (MDB2::isError($result)) {
$this->assertTrue(false, 'Error selecting from users' . $result->getMessage());
}
$this->assertTrue($result->valid(), 'Transaction commit did not make permanent the row that was inserted');
$result->free();
$result =& $this->db->query('DELETE FROM users');
if (MDB2::isError($result)) {
$this->assertTrue(false, 'Error deleting from users' . $result->getMessage());
$this->db->rollback();
}
$autocommit = $this->db->autocommit(1);
$this->assertTrue(!MDB2::isError($autocommit), 'Error autocommiting transactions');
$this->db->freePrepared($prepared_query);
$result =& $this->db->query('SELECT * FROM users');
if (MDB2::isError($result)) {
$this->assertTrue(false, 'Error selecting from users' . $result->getMessage());
}
$this->assertTrue(!$result->valid(), 'Transaction end with implicit commit when re-enabling auto-commit did not make permanent the rows that were deleted');
$result->free();
}
/**
* @see http://pear.php.net/bugs/bug.php?id=670
*/
function testBug670()
{
$data['user_name'] = null;
$data['user_password'] = '******';
$data['subscribed'] = true;
$data['user_id'] = 1;
$data['quota'] = sprintf("%.2f", strval(3 / 100));
$data['weight'] = sqrt(1);
$data['access_date'] = MDB2_Date::mdbToday();
$data['access_time'] = MDB2_Date::mdbTime();
$data['approved'] = MDB2_Date::mdbNow();
$stmt = $this->db->prepare('INSERT INTO users (' . implode(', ', array_keys($this->fields)) . ') VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)', array_values($this->fields), MDB2_PREPARE_MANIP);
$result = $stmt->execute(array_values($data));
$result =& $this->db->query('SELECT user_name FROM users');
$col = $result->fetchCol('user_name');
if (PEAR::isError($col)) {
$this->fail('Error when fetching column first first row as NULL: ' . $col->getMessage());
}
$data['user_name'] = "user_1";
$data['user_id'] = 2;
$result = $stmt->execute(array_values($data));
$result =& $this->db->query('SELECT user_name FROM users');
$col = $result->fetchCol('user_name');
if (PEAR::isError($col)) {
$this->fail('Error when fetching column: ' . $col->getMessage());
}
$data['user_name'] = null;
$stmt->free();
}
function insertSessionDataToDatabase()
{
// Stores session data to database.
$sql = "INSERT INTO ilmo_users (ilmo_id, id_string, confirmed, time) VALUES ({$this->newSignupid}, '{$this->sessionId}', 0, '" . MDB2_Date::mdbNow() . "')";
$this->database->doQuery($sql);
}
<?php
require_once "../DBInterface.php";
require_once "../ErrorReportEnabler.php";
MDB2::loadFile("Date");
$sql = "SELECT (" . MDB2_Date::mdbNow() . " - " . MDB2_Date::unix2Mdbstamp(strtotime('Jan 18, 2007')) . ")";
print "<p>{$sql}</p>";
$result = query($conn, $sql);
print_r($result->fetchRow());
function timeToSql($timestamp)
{
return MDB2_Date::unix2Mdbstamp($timestamp);
}
/**
* http://pear.php.net/bugs/bug.php?id=3146
*/
function testBug3146()
{
$data = array();
$total_rows = 5;
$query = 'INSERT INTO users (' . implode(', ', array_keys($this->fields)) . ') VALUES (' . implode(', ', array_fill(0, count($this->fields), '?')) . ')';
$stmt = $this->db->prepare($query, array_values($this->fields), MDB2_PREPARE_MANIP);
for ($row = 0; $row < $total_rows; $row++) {
$data[$row]['user_name'] = "user_{$row}";
$data[$row]['user_password'] = '******';
$data[$row]['subscribed'] = (bool) ($row % 2);
$data[$row]['user_id'] = $row;
$data[$row]['quota'] = sprintf("%.2f", strval(1 + ($row + 1) / 100));
$data[$row]['weight'] = sqrt($row);
$data[$row]['access_date'] = MDB2_Date::mdbToday();
$data[$row]['access_time'] = MDB2_Date::mdbTime();
$data[$row]['approved'] = MDB2_Date::mdbNow();
$result = $stmt->execute(array_values($data[$row]));
if (PEAR::isError($result)) {
$this->assertTrue(false, 'Error executing prepared query' . $result->getMessage());
}
}
$stmt->free();
$query = 'SELECT ' . implode(', ', array_keys($this->fields)) . ' FROM users ORDER BY user_id';
$result =& $this->db->query($query, $this->fields);
$numrows = $result->numRows($result);
$this->verifyFetchedValues($result, 0, $data[0]);
$this->verifyFetchedValues($result, 2, $data[2]);
$this->verifyFetchedValues($result, null, $data[3]);
$this->verifyFetchedValues($result, 1, $data[1]);
$result->free();
}
/**
* Reads auth_user_id, passwd, is_active flag
* lastlogin timestamp from the database
* If only $handle is given, it will read the data
* from the first user with that handle and return
* true on success.
* If $handle and $passwd are given, it will try to
* find the first user with both handle and password
* matching and return true on success (this allows
* multiple users having the same handle but different
* passwords - yep, some people want this).
* If no match is found, false is being returned.
*
* @param string $handle user handle
* @param boolean $passwd user password
* @param string $auth_user_id auth user id
* @return boolean true on success or false on failure
*
* @access private
*/
function readUserData($handle = '', $passwd = '', $auth_user_id = false)
{
$fields = $types = array();
foreach ($this->tables['users']['fields'] as $field => $req) {
$fields[] = $this->alias[$field] . ' AS ' . $field;
$types[] = $this->fields[$field];
}
// Setting the default query.
$query = 'SELECT ' . implode(',', $fields) . '
FROM ' . $this->prefix . $this->alias['users'] . '
WHERE ';
if ($auth_user_id) {
$query .= $this->alias['auth_user_id'] . '=' . $this->dbc->quote($this->propertyValues['auth_user_id'], $this->fields['auth_user_id']);
} else {
$query .= $this->alias['handle'] . '=' . $this->dbc->quote($handle, $this->fields['handle']);
if ($this->tables['users']['fields']['passwd']) {
// If $passwd is set, try to find the first user with the given
// handle and password.
$query .= ' AND ' . $this->alias['passwd'] . '=' . $this->dbc->quote($this->encryptPW($passwd), $this->fields['passwd']);
}
}
// Query database
$result = $this->dbc->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);
// If a user was found, read data into class variables and set
// return value to true
if (PEAR::isError($result)) {
$this->_stack->push(LIVEUSER_ERROR, 'exception', array('reason' => $result->getMessage() . '-' . $result->getUserInfo()));
return false;
}
if (!is_array($result)) {
return null;
}
if (array_key_exists('lastlogin', $result) && !empty($result['lastlogin'])) {
$result['lastlogin'] = MDB2_Date::mdbstamp2Unix($result['lastlogin']);
}
$this->propertyValues = $result;
return true;
}
// since we are on php5 we can use the magic __call() method to:
// - load the manager module: $mdb2->loadModule('Manager', null, true);
// - redirect the method call to the manager module: $mdb2->manager->createTable('sometable', $fields);
$mdb2->mgCreateTable($table, $fields);
$query = "INSERT INTO {$table} (somename, somedate) VALUES (:name, :date)";
// parameters:
// 1) the query (notice we are using named parameters, but we could also use ? instead
// 2) types of the placeholders (either keyed numerically in order or by name)
// 3) MDB2_PREPARE_MANIP denotes a DML statement
$stmt = $mdb2->prepare($query, array('text', 'date'), MDB2_PREPARE_MANIP);
if (PEAR::isError($stmt)) {
die($stmt->getMessage());
}
// load Date helper class
MDB2::loadFile('Date');
$stmt->execute(array('name' => 'hello', 'date' => MDB2_Date::mdbToday()));
// get the last inserted id
echo 'last insert id: ';
var_dump($mdb2->lastInsertId($table, 'id'));
$stmt->execute(array('name' => 'world', 'date' => '2005-11-11'));
// get the last inserted id
echo 'last insert id: ';
var_dump($mdb2->lastInsertId($table, 'id'));
// load Iterator implementations
MDB2::loadFile('Iterator');
$query = 'SELECT * FROM ' . $table;
// parameters:
// 1) the query
// 2) true means MDB2 tries to determine the result set type automatically
// 3) true is the default and means that internally a MDB2_Result instance should be created
// 4) 'MDB2_BufferedIterator' means the MDB2_Result should be wrapped inside an SeekableIterator
/**
* Return string to call a variable with the current timestamp inside an SQL statement
* There are three special variables for current date and time:
* - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
* - CURRENT_DATE (date, DATE type)
* - CURRENT_TIME (time, TIME type)
*
* @return string to call a variable with the current timestamp
* @access public
*/
public function now()
{
if ($this->dbLayer === 'MDB2') {
return MDB2_Date::mdbNow();
} elseif ($this->dbLayer === 'PDO') {
return date('Y-m-d H:i:s');
}
}