Environment based application configuration

This is my environment based configuration implementation for PhalconPHP App. It overrides configs by machine hostname. You can override by any other parameter.

my config files:

\-config
  |-config.php // main config file
  |-portal.php // production config file
  |-thinkpad.php // my laptop config file
  |-...(1 config per hostname)

main config.php is something like this:

<?php
$config = [
    'application' => [
        'name'      => 'APP NAME',
        'codename'  => 'RONIN',
    ],
    'database'    => [
        'adapter'  => 'Postgresql',
        'host'     => 'DB_HOST',
        'username' => 'DB_USER',
        'password' => 'DB_PASS',
        'name'     => 'DB_NAME',
    ],
    'cache'       => [
        'prefix' => 'PREFIX.'
    ],
        'log'         => [
        'adapter' => 'redis',
        'logLevel' => 7,
        'limit'    => 10,
        'logFile'  => '/tmp/ronin.log'
    ],
    .... // ANY OTHER CONFIGURATION
];

function array_merge_recursive_replace ()
{
    $arrays = func_get_args();
    $base   = array_shift($arrays);

    foreach ($arrays as $array) {
        reset($base);
        while (list($key, $value) = @each($array)) {
            if (is_array($value) && @is_array($base[$key])) {
                $base[$key] = array_merge_recursive_replace($base[$key], $value);
            }
            else {
                $base[$key] = $value;
            }
        }
    }

    return $base;
}

if (file_exists(__DIR__ . DIRECTORY_SEPARATOR . gethostname() . '.php')) {
    $config = array_merge_recursive_replace($config, require(gethostname() . '.php')); 
    // it depends on machine hostname and override config.php by yourhostname.php // ****
}

return new \Phalcon\Config($config);

any other configuration file override main configs. for example if your production machine name is portal then create portal.php file like below:

<?php
return [
    'database' => [
        'adapter'  => 'Postgresql',
        'host'     => 'localhost',
        'username' => 'postgres',
        'password' => '1234',
        'name'     => 'real_portal_dbname',
    ],
    'log'         => [
        'logLevel' => 2,
        'logFile'  => '/var/log/app/ronin.log'
    ],
];

init config in bootstrap:

$config = include ROOT . '/app/config/config.php';

$di = new \Phalcon\DI\FactoryDefault();
$di->setShared('config', $config);

don't forget to add all config files except config.php to gitignore

Other solutions are welcome :)