static function createConnection($config) { if (APIHelpers::$CONN != null) { return APIHelpers::$CONN; } APIHelpers::$CONN = new PDO('mysql:host=' . $config['db']['host'] . ';dbname=' . $config['db']['dbname'] . ';charset=utf8', $config['db']['username'], $config['db']['userpass']); return APIHelpers::$CONN; }