public function isDataUrl()
    {
        $data = $this->decodeDataUrl($this->data);

        return is_null($data) ? false : true;
    }
public function isDataUrl()
    {
        $data = $this->decodeDataUrl($this->data);

        return is_null($data) ? false : true;
    }
public function isDataUrl ( ) { $ data = $ this -> decodeDataUrl ( $ this -> data ) ; return is_null ( $ data ) ? false : true ; }
Determines if current source data is data-url

@return boolean
Determines if current source data is data - url