public function decodeDelay()
    {
        if ($this->graphicsControlExtension) {
            $byte = substr($this->graphicsControlExtension, 2, 2);
            return (int) unpack('v', $byte)[1];
        }

        return false;
    }
public function decodeDelay()
    {
        if ($this->graphicsControlExtension) {
            $byte = substr($this->graphicsControlExtension, 2, 2);
            return (int) unpack('v', $byte)[1];
        }

        return false;
    }
public function decodeDelay ( ) { if ( $ this -> graphicsControlExtension ) { $ byte = substr ( $ this -> graphicsControlExtension , 2 , 2 ) ; return ( int ) unpack ( 'v' , $ byte ) [ 1 ] ; } return false ; }
Returns delay of current instance

@return int
Returns delay of current instance