Example of php determining whether the page is opened by WeChat_PHP tutorial

The code is as follows:

$user_agent = $_SERVER['HTTP_USER_AGENT'];

　if (strpos($user_agent, 'MicroMessenger') === false) {

// Non-WeChat browsers are prohibited from browsing

echo "HTTP/1.1 401 Unauthorized";

　} else {

// WeChat browser, allow access

echo "MicroMessenger";

// Get version number

preg_match('/.*?(MicroMessenger/([0-9.]+))s*/', $user_agent, $matches);

echo '

Version:'.$matches[2];

　}

Well, I can’t refute it directly, but this is indeed very unreliable,

Let’s talk about the data.

The following are the HTTP_USER_AGENT information for Android, WinPhone, and iPhone.

The code is as follows:

　"HTTP_USER_AGENT": "Mozilla/5.0 (Linux; U; Android 4.1; zh-cn; Galaxy Nexus Build/Wind-Galaxy Nexus-V1.2) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari /534.30 MicroMessenger/5.0.1.352",

　"HTTP_USER_AGENT": "Mozilla/5.0 (compatible; MSIE 10.0; Windows Phone 8.0; Trident/6.0; IEMobile/10.0; ARM; Touch; NOKIA; Nokia 920T)",

　"HTTP_USER_AGENT": "Mozilla/5.0 (iPhone; CPU iPhone OS 6_1_3 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Mobile/10B329 MicroMessenger/5.0.1",

You can see that WinPhone does not have MicroMessenger at all, so it is impossible to judge. In fact, the userAgent judgment is very fake, so I think we should use js to judge whether WeixinJSBridge exists, and then use ajax to php

PHP detects and then returns the real page information, adding a "Loading..." during the period. This is very harmonious. Of course, ajax can also be deceived, but compared to userAgent deception, it is a little more troublesome. Yes,

However, our purpose is to detect whether it is WeChat, not to deceive. I will not write the specific code, because I hate the kind of use-ism, unlimited copying and pasting, and sometimes the code is filtered. I don’t care about a part of it,

http://www.bkjia.com/PHPjc/761298.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/761298.htmlTechArticleThe code is as follows: $user_agent = $_SERVER['HTTP_USER_AGENT']; if (strpos($user_agent, 'MicroMessenger' ) === false) { // Non-WeChat browsers are prohibited from browsing echo HTTP/1.1 401 Unauthorized; }...