public static function getConnection() { if (dbconnection::$dbconnection === NULL) { // database access credentials stored in variables $host = "localhost"; $database = "n00143888playground"; // $username = "******"; // $password = "******"; $username = "******"; $password = ""; $dsn = "mysql:host=" . $host . ";dbname=" . $database; dbconnection::$dbconnection = new PDO($dsn, $username, $password); if (!dbconnection::$dbconnection) { die("Database connection failed"); } } return dbconnection::$dbconnection; }