AppFog MySQL connection

<?php
$services_json = json_decode(getenv("VCAP_SERVICES"),true);
$mysql_config = $services_json["mysql-5.1"][0]["credentials"];
return array(
    'db' => array(
    'dsn' => 'mysql:dbname='.$mysql_config["name"].';host='.$mysql_config["hostname"].';port='.$mysql_config["port"],
        'username'       => $mysql_config["username"],
        'password'       => $mysql_config["password"],
    )
);