PHP代码

if ( strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false ) {        return ‘WeiXin’;}//判断是不是支付宝if (strpos($_SERVER['HTTP_USER_AGENT'], 'AlipayClient') !== false) {        return "AliPay";}

JS判断

function WxOrAli(){    var ua = window.navigator.userAgent.toLowerCase();    //判断是不是微信    if ( ua.match(/MicroMessenger/i) == 'micromessenger' ) {          return "WeiXIN";      }        //判断是不是支付宝    if (ua.match(/AlipayClient/i) == 'alipayclient') {        return "Alipay";      }    //哪个都不是    return "false";}