public function find($key)
    {
        if (isset($this->payload[$key])) {
            return $this->payload[$key];
        }

        return null;
    }
public function find($key)
    {
        if (isset($this->payload[$key])) {
            return $this->payload[$key];
        }

        return null;
    }
public function find ( $ key ) { if ( isset ( $ this -> payload [ $ key ] ) ) { return $ this -> payload [ $ key ] ; } return null ; }
Find a value from array with given key.

@param $key

@return mixed
Find a value from array with given key .