如何区分用户是通过手机还是电脑浏览器访问网站？

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javascriptfunction isMobile() { $useragent=isset($SERVER['HTTP_USER_AGENT']) ? $SERVER['HTTP_USER_AGENT'] : ''; $useragent_commentsblock=preg_match('/\b(?:Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini)\b/', $useragent) ? 'yes' : 'no';}

function isMobile(){ $useragent=isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : ''; $useragent_commentsblock=preg_match('|\(.*?\)|',$useragent,$matches)>0?$matches[0]:''; function CheckSubstrs($substrs,$text){ foreach($substrs as $substr) if(false!==strpos($text,$substr)){ return true; } return false; } $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'); $found_mobile=CheckSubstrs($mobile_os_list,$useragent_commentsblock) || CheckSubstrs($mobile_token_list,$useragent); if ($found_mobile){ return true; }else{ return false; } } if (isMobile()){ header('location: ./app/index.php');//如果为手机端，执行跳转 } else{ header('location: ./web/index.php');//如果非手机端，执行跳转 }