PHP determines from which channel to open the QR code

This time I will bring youPHPWhat are theprecautionsto determine from which channel to open the QR code and PHP to determine from which channel to open the QR code? The following is a practical case , let’s take a look.

#Problem

Problems encountered in the project, if the user accesses using WeChat.

Then make it friendly Tips"How to open with a browser/Tell the user to open with a browser"

Solution

useragent is a browser identifier, with some customer information. For example, the browser kernel, operating system, etc.

WeChat access to the web page is also a browser, it also has a UA. Then you can identify it by judging its UA Whether it has been visited by WeChat

$ua = $_SERVER['HTTP_USER_AGENT']; //MicroMessenger 是android/iphone版微信所带的 //Windows Phone 是winphone版微信带的 (这个标识会误伤winphone普通浏览器的访问) if(strpos($ua, 'MicroMessenger') == false || strpos($ua, 'Windows Phone') == false){ echo "来自普通浏览器访问"; }else{ echo "来自微信浏览器访问"; }

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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