JS/PHP判断是否为微信内置浏览器

JavaScript

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

PHP

function is_weixin() {
    if (strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false) {
        return true;
    }
    return false;
}

function weixin_version() {
    preg_match('/.*?(MicroMessenger\/([0-9.]+))\s*/', $_SERVER['HTTP_USER_AGENT'], $matches);
    echo '你的微信版本号为:'.$matches[2];
}

User-Agent

• Android微信浏览器

  Mozilla/5.0 (Linux; Android 5.0; SM-N9100 Build/LRX21V) > AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 > Chrome/37.0.0.0 Mobile Safari/537.36 > MicroMessenger/6.0.2.56_r958800.520 NetType/WIFI

• iOS微信浏览器

  Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_2 like Mac OS X) > AppleWebKit/537.51.2 (KHTML, like Gecko) Mobile/11D257 > MicroMessenger/6.0.1 NetType/WIFI