Google Analytics 异步加载方案（PHP）

ga.js

// ********************
// * Author: JerryQu
// * https://imququ.com
// *********************
(function(window, document, navigator, location) {
var screen = window.screen;
var encode = encodeURIComponent;

var data = [
'dt=' + encode(document.title),
'dr=' + encode(document.referrer),
'ul=' + (navigator.language || navigator.browserLanguage),
'sd=' + screen.colorDepth + '-bit',
'sr=' + screen.width + 'x' + screen.height,
'_=' + (+new Date)
];

var query = '?' + data.join('&');

window.__beacon_img = new Image();
window.__beacon_img.src = '/ga.php' + query;
})(window, document, navigator, location);

ga.min.js

!function(e,n,o){var t=e.screen,a=encodeURIComponent,r=["dt="+a(n.title),"dr="+a(n.referrer),"ul="+(o.language||o.browserLanguage),"sd="+t.colorDepth+"-bit","sr="+t.width+"x"+t.height,"vp="+e.innerWidth+"x"+e.innerHeight,"z="+ +new Date],i="?"+r.join("&");e.__beacon_img=new Image,e.__beacon_img.src="/ga.php"+i}(window,document,navigator,location);

ga.php

<?php
// ********************
// * Author: stneng
// * Date: 2016.12.11
// * Introduction: https://u.nu/ytq
// *********************
    header("status: 204");
    header("Cache-Control: no-cache, max-age=0");
    header("Pragma: no-cache");
	
    $tid='';  //在这里写Google Analytics给的tid，形如：UA-XXXX-Y

    function create_uuid(){
        $str = md5(uniqid(mt_rand(), true));
        $uuid = substr($str,0,8) . '-';
        $uuid .= substr($str,8,4) . '-';
        $uuid .= substr($str,12,4) . '-';
        $uuid .= substr($str,16,4) . '-';
        $uuid .= substr($str,20,12);
        return $uuid;
    }

    if (!isset($_COOKIE["uuid"])) {
        $uuid=create_uuid();
        setcookie("uuid", $uuid , time()+368400000);
    }else{
        $uuid=$_COOKIE["uuid"];
    }

    if (function_exists("fastcgi_finish_request")) {
        fastcgi_finish_request(); //对于fastcgi会提前返回请求结果，提高响应速度。
    }

    $url='v=1&t=pageview&';
    $url.='tid='.$tid.'&';
    $url.='cid='.$uuid.'&';
    $url.='dl='.rawurlencode(rawurldecode($_SERVER['HTTP_REFERER'])).'&';
    $url.='uip='.rawurlencode(rawurldecode($_SERVER['REMOTE_ADDR'])).'&';
    $url.='ua='.rawurlencode(rawurldecode($_SERVER['HTTP_USER_AGENT'])).'&';
    $url.='dt='.rawurlencode(rawurldecode($_GET['dt'])).'&';
    $url.='dr='.rawurlencode(rawurldecode($_GET['dr'])).'&';
    $url.='ul='.rawurlencode(rawurldecode($_GET['ul'])).'&';
    $url.='sd='.rawurlencode(rawurldecode($_GET['sd'])).'&';
    $url.='sr='.rawurlencode(rawurldecode($_GET['sr'])).'&';
    $url.='vp='.rawurlencode(rawurldecode($_GET['vp'])).'&';
    $url.='z='.$_GET['z'];
    $url='https://www.google-analytics.com/collect?'.$url;
    $ch=curl_init();
      curl_setopt($ch, CURLOPT_URL, $url);
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
      curl_exec($ch);
      curl_close($ch);

?>

good~ thank you