appfog 数据库问题

按照https://github.com/appfog/af-php-wordpress/blob/master/wp-config.php这个里面的代码写了个，测试页面，但是传上去无法执行：

<?php
$services = getenv('VCAP_SERVICES');
$services_json = json_decode($services,true);
$mysql_config = $services_json["mysql-5.1"][0]["credentials"];

$host = $mysql_config["hostname"];
$port = $mysql_config["port"]);
$db = $mysql_config["name"];
$user = $mysql_config["user"];
$password = $mysql_config["password"];


echo $host.'<br>';
echo $port.'<br>';
echo $db.'<br>';
echo $user.'<br>';
echo $password.'<br>';
?>

有用过的么。