function __construct ($debug_level=0) {
$php_errormsg = '';
if ($debug_level) $this->debug_level = $debug_level;
if ($this->debug_level>0) printf("\nDEBUG_LEVEL: %s <br>\n",$this->debug_level);
$this->exceptions();
$this->sys_log();
//local function variables
$congif_simple_xml = simplexml_load_file(CONFIG_XML_FILE); //container for xml object tree
if ($congif_simple_xml === FALSE) {
sys_log::create_log("Error while parsing XML configuration document for database connection",ADMIN_EMAIL);
$status["location"] = "db_connection";
$status["exception_type"] = "fail at constructor";
$status["error"] = $php_errormsg;
exceptions::halt($status);
}
// extract information for DB connection
$this->username = $congif_simple_xml->DatabaseAccount->username;
$this->password = $congif_simple_xml->DatabaseAccount->password;
$this->host = $congif_simple_xml->DatabaseAccount->host;
$this->port = $congif_simple_xml->DatabaseAccount->port;
$this->database = $congif_simple_xml->DatabaseAccount->database;
$this->client_flags = $congif_simple_xml->DatabaseAccount->client_flags;
$this->new_connection = $congif_simple_xml->DatabaseAccount->new_connection;
$this->tty = $congif_simple_xml->DatabaseAccount->tty;
$this->security_level = $congif_simple_xml->DatabaseAccount->security_level;
// establish connection
$this->connect ();
register_shutdown_function(array(&$this, 'close'));
}
// this constant is used to send an e-mail to the address
// given as its value for critical errors
//define ("ADMIN_EMAIL", "*****@*****.**");
//define ("LOG_FILE", "/var/www/logs/php_app_log");
// this is to set $php_errormsg on errors
$error_tracking = ini_set("track_errors","1");
if ($error_tracking===false || $error_tracking===null) {
//prepare available values
$status["location"] = "sys_log.app";
$status["exception_type"] = "track errors";
$status["error"] = "failed to set php.ini flag to track_errors=1";
//log and then halt
exceptions::halt($status);
}
class sys_log {
//***** member variables
var $date = ""; //private
var $location = ""; //private
var $info_array = array (); //protected
var $message = ""; //protected
var $error = ""; //protected
var $errno = ""; //protected
//***** class constructor
//private
//needs to be explicitly called from extending function
function log_halt ($exception="",$email=null) {
//declare array for status
$status = array ();
//prepare available values
$status["location"] = $this->location;
$status["exception_type"] = $exception;
$status["error"] = $this->error;
$status["errno"] = $this->errno;
$status["info"] = $this->info_array;
//log and then halt
$this->log ($email);
exceptions::halt($status);
}
