public function get($key)
    {
        if (!isset($this->setFields[$key]))
            return null;

        return $this->setFields[$key];
    }
public function get($key)
    {
        if (!isset($this->setFields[$key]))
            return null;

        return $this->setFields[$key];
    }
public function get ( $ key ) { if ( ! isset ( $ this -> setFields [ $ key ] ) ) return null ; return $ this -> setFields [ $ key ] ; }
Checks if the key is set, returns it if true

@param $key
@return $setFields
Checks if the key is set returns it if true