• Register

JS和PHP判断页面是否为微信内访问

判断页面是否为微信内访问,其实也就是判断浏览器UA是否包含微信浏览器相关信息。

比如下面这段抓取到的UA:

# iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 8_0 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Mobile/13B143 MicroMessenger/5.4.1

# Android
Mozilla/5.0 (Linux; U; Android 4.0.2; en-us; Galaxy Nexus Build/ICL53F) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 MicroMessenger/5.4.1

可以通过 MicroMessenger 关键词来判断是否在微信内浏览。

JavaScript 方法:

<script type="text/javascript">
function isWXbrower(){
	var ua = navigator.userAgent.toLowerCase();
	if( ua.match(/MicroMessenger/i)=="micromessenger" ){
		return true;
	} else {
		return false;
	}
}

if( !isWXbrower() ){
	……
} else {
	……
}
</script>

PHP 方法:

<?php
function isWXbrower(){
	if( strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false ){
		return true;
	}
	return false;
}
?>

最后看一下微信自家的判断代码:

<!DOCTYPE html><html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=0">
</head>
<body>

<script type="text/javascript">
	var ua = navigator.userAgent.toLowerCase();
	var isWeixin = ua.indexOf('micromessenger') != -1;
	var isAndroid = ua.indexOf('android') != -1;
	var isIos = (ua.indexOf('iphone') != -1) || (ua.indexOf('ipad') != -1);
	if (!isWeixin) {
		document.head.innerHTML = '<title>抱歉,出错了</title><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=0"><link rel="stylesheet" type="text/css" href="https://res.wx.qq.com/open/libs/weui/0.4.1/weui.css">';
		document.body.innerHTML = '<div class="weui_msg"><div class="weui_icon_area"><i class="weui_icon_info weui_icon_msg"></i></div><div class="weui_text_area"><h4 class="weui_msg_title">请在微信客户端打开链接</h4></div></div>';
	}
</script>

</body>
</html>
版权声明:转载请注明来自杨俊伟博客,本文地址:http://yangjunwei.com/a/1780.html
除非注明,杨俊伟博客文章均为原创,转载请注明出处和链接!
 

发表评论 

我还是想用邮箱注册

登录

忘记密码 ?

用第三方帐号快捷登录

已有账户?前往登录吧~

注册