/** This function will initialize the connection to the database, setting $conDB, if it hasn't already
* been done. This should be called in the regular constructor, and in every static function that requires
* the use of the $conDB variable. */
private static function initialize()
{
/* Only bother with this function if the database connection hasn't already been made. */
if (!clsDB::$conDB) {
clsDB::$conDB = mysql_pconnect(DBHOST, DBUSERNAME, DBPASSWORD);
if (!clsDB::$conDB) {
throw new Exception("Error connecting to database server: " . mysql_error());
}
if (!mysql_select_db(DBNAME, clsDB::$conDB)) {
throw new Exception("Error selecting database: " . mysql_error());
}
}
}