Use PHP and JavaScript to determine whether the request comes from the WeChat browser _ PHP-php Tutorial

This article mainly introduces how to use PHP and JavaScript to determine whether a request comes from an internal browser, including how to share a JS script in a mobile app. For more information, see HTTP_USER_AGENT in the browser.

Under the iPhone, return

Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B176 MicroMessenger/4.3.2)

In Android

Mozilla/5.0 (Linux; U; Android 2.3.6; zh-cn; GT-S5660 Build/GINGERBREAD) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1 MicroMessenger/4.5.255)

It is not difficult to find that the browser is MicroMessenger and has a version number. you can also determine whether the mobile phone type is iPhone or Android.

If you want to perform leeching

If (strpos ($ _ SERVER ["HTTP_USER_AGENT"], "MicroMessenger") echo "Welcome to wechat word"; else echo "http/1.1 401 Unauthorized "; public function is_weixin () {if (strpos ($ _ SERVER ['http _ USER_AGENT '], 'micromessenger ')! = False) {return true;} return false;} if ($ this-> is_weixin () {} else {echo "please visit this website. ";}

Js judgment

function is_weixin(){  var ua = navigator.userAgent.toLowerCase();  if(ua.match(/MicroMessenger/i)=="micromessenger") {    return true;   } else {    return false;  }}

After the browser is determined on the mobile phone end, you can use the share js script to process it. for details, refer to the official document. here is a case study to learn about the general process and ideas.