判断是否为微信浏览器浏览

[php]代码库

<?php
           
            $useragent = addslashes($_SERVER['HTTP_USER_AGENT']); 
            if(strpos($useragent, 'MicroMessenger') === false && strpos($useragent, 'Windows Phone') === false ){ 
               echo " 非微信浏览器禁止访问www.buyerinfo.biz";
                
            }else{ 
               echo "微信浏览器，允许访问YES";
                preg_match("/.*?(MicroMessenger\/([0-9.]+))\s*/",$useragent, $matches);
                echo "你的微信版本号为:".$matches[2];
            } 
        ?>