Gajus\Vlad\Selector::getPath PHP Method

    public function getPath()
    {
        return explode('[', str_replace(']', '', $this->name));
    }

 /**
  * @param Gajus\Vlad\Selector $selector
  * @return mixed
  */
 public function getValue(\Gajus\Vlad\Selector $selector)
 {
     $value = $this->input;
     foreach ($selector->getPath() as $crumb) {
         if (array_key_exists($crumb, $value)) {
             $value = $value[$crumb];
         } else {
             $value = null;
             break;
         }
     }
     return $value;
 }