public function pageLoadTime()
    {
        $first = $this->timestamp[0]['when'];
        $last = $this->timestamp[count($this->timestamp) - 1]['when'];
        $loadtime = round($last - $first, 3);
        return $loadtime;
    }
public function pageLoadTime()
    {
        $first = $this->timestamp[0]['when'];
        $last = $this->timestamp[count($this->timestamp) - 1]['when'];
        $loadtime = round($last - $first, 3);
        return $loadtime;
    }
public function pageLoadTime ( ) { $ first = $ this -> timestamp [ 0 ] [ 'when' ] ; $ last = $ this -> timestamp [ count ( $ this -> timestamp ) - 1 ] [ 'when' ] ; $ loadtime = round ( $ last - $ first , 3 ) ; return $ loadtime ; }
Returns load time of the page

@return The page load time.
Returns load time of the page