<?php
class IsMobile {public static function isMobile(){$useragent=isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';$useragent_commentsblock=preg_match('|\(.*?\)|',$useragent,$matches)>0?$matches[0]:'';$mobile_os_list = array('Google Wireless Transcoder','Windows CE','WindowsCE','Symbian','Android','armv6l','armv5','Mobile','CentOS','mowser','AvantGo','Opera Mobi','J2ME/MIDP','Smartphone','Go.Web','Palm','iPAQ');$mobile_token_list = array('Profile/MIDP','Configuration/CLDC-','160×160','176×220','240×240','240×320','320×240','UP.Browser','UP.Link','SymbianOS','PalmOS','PocketPC','SonyEricsson','Nokia','BlackBerry','Vodafone','BenQ','Novarra-Vision','Iris','NetFront','HTC_','Xda_','SAMSUNG-SGH','Wapaka','DoCoMo','iPhone','iPod');$found_mobile = self::CheckSubstrs($mobile_os_list, $useragent_commentsblock) ||self::CheckSubstrs($mobile_token_list,$useragent);if ($found_mobile){return true;}else{return false;}}public static function CheckSubstrs($substrs,$text){foreach($substrs as $substr)if(false!==strpos($text,$substr)){return true;}return false;}
}/*test code
if (IsMobile::isMobile())echo '手机登录www.nginx.cn';
elseecho '电脑登录www.nginx.cn';
*/
?>

function isPhone() {// 如果有HTTP_X_WAP_PROFILE则一定是移动设备if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {return true;}//如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息if (isset($_SERVER['HTTP_VIA'])) {//找不到为flase,否则为trueif(stristr($_SERVER['HTTP_VIA'], "wap")){return true;}}//脑残法，判断手机发送的客户端标志,兼容性有待提高if (isset($_SERVER['HTTP_USER_AGENT'])) {$clientkeywords = array ('nokia','sony','ericsson','mot','samsung','htc','sgh','lg','sharp','sie-','philips','panasonic','alcatel','lenovo','iphone','ipod','blackberry','meizu','android','netfront','symbian','ucweb','windowsce','palm','operamini','operamobi','openwave','nexusone','cldc','midp','wap','mobile','phone',);// 从HTTP_USER_AGENT中查找手机浏览器的关键字if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {return true;}}//协议法，因为有可能不准确，放到最后判断if (isset($_SERVER['HTTP_ACCEPT'])) {// 如果只支持wml并且不支持html那一定是移动设备// 如果支持wml和html但是wml在html之前则是移动设备if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html')))) {return true;}}return false;
}
js区分手机或PC访问源码方法一<!--切换手机版网站--->
<script src="http://siteapp.baidu.com/static/webappservice/uaredirect.js" type="text/javascript"></script>
<script type="text/javascript">uaredirect("http://www.nginx.cn/");</script>
方法二<script type="text/javascript"><!-- //平台、设备和操作系统var system ={win : false,mac : false,xll : false};//检测平台var p = navigator.platform;system.win = p.indexOf("Win") == 0;system.mac = p.indexOf("Mac") == 0;system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);//跳转语句，如果是手机访问就自动跳转到wap.baidu.com页面if(system.win||system.mac||system.xll){window.location.href="http://www.kdw.cc";}else{window.location.href="http://m.kdw.cc";}-->
</script>