Documentaion on Config Service.

[zikezhang]

update Phalcon\Cache\CacheFactory; to Phalcon\Config\ConfigFactory;

for instance:

use Phalcon\Cache\CacheFactory;
$fileName = '/app/storage/config.php';
$factory  = new ConfigFactory();

$options = [
    'adapter'  => 'php',
    'filePath' => $fileName,
];

$config = $factory->load($options);

the namespace should be Phalcon\Config\ConfigFactory;

[niden]

Thank you @zikezhang