Kraken\Config\Config::merge PHP Method

    public function merge($config, $handler = null)
    {
        $this->config = $this->overwrite($this->config, $config, $handler);
        return $this;
    }

 /**
  * @param FilesystemInterface $fs
  * @param string[] $masks
  * @param ParserInterface[] $parsers
  * @param bool $recursive
  */
 public function __construct(FilesystemInterface $fs, $masks = [], $parsers = [], $recursive = false)
 {
     parent::__construct();
     $factory = $this;
     $factory->bindParam('fs', $fs);
     $factory->bindParam('masks', $masks);
     $factory->bindParam('parsers', $parsers);
     $factory->bindParam('recursive', $recursive);
     $factory->define(function (callable $overwriteHandler = null) {
         $fs = $this->getParam('fs');
         $masks = $this->getParam('masks');
         $parsers = $this->getParam('parsers');
         $recursive = $this->getParam('recursive');
         $filters = $masks;
         $filters[] = '#(' . $this->getPatternForExt() . ')$#si';
         $files = $fs->getFiles('', $recursive, $filters);
         $data = [];
         $config = new Config($data, $overwriteHandler);
         foreach ($files as $file) {
             $ext = $file['extension'];
             $data = [];
             if ($ext === 'php') {
                 $data = $fs->req($file['path']);
             } else {
                 if (isset($parsers[$ext])) {
                     $contents = $fs->read($file['path']);
                     $data = $parsers[$ext]->decode($contents);
                 }
             }
             $config->merge($data);
         }
         return $config;
     });
 }