PHP函数判断是不是手机访问的网站

先贴出代码

//判断是否属手机
?
function is_mobile(){
?
??? $user_agent = $_SERVER[‘HTTP_USER_AGENT’];
?
??? $mobile_agents = Array(“240×320″,”acer”,”acoon”,”acs-“,”abacho”,”ahong”,”airness”,”alcatel”,”amoi”,”android”,”anywhereyougo.com”,”applewebkit/525″,”applewebkit/532″,”asus”,”audio”,”au-mic”,”avantogo”,”becker”,”benq”,”bilbo”,”bird”,”blackberry”,”blazer”,”bleu”,”cdm-“,”compal”,”coolpad”,”danger”,”dbtel”,”dopod”,”elaine”,”eric”,”etouch”,”fly “,”fly_”,”fly-“,”go.web”,”goodaccess”,”gradiente”,”grundig”,”haier”,”hedy”,”hitachi”,”htc”,”huawei”,”hutchison”,”inno”,”ipad”,”ipaq”,”ipod”,”jbrowser”,”kddi”,”kgt”,”kwc”,”lenovo”,”lg “,”lg2″,”lg3″,”lg4″,”lg5″,”lg7″,”lg8″,”lg9”,”lg-“,”lge-“,”lge9″,”longcos”,”maemo”,”mercator”,”meridian”,”micromax”,”midp”,”mini”,”mitsu”,”mmm”,”mmp”,”mobi”,”mot-“,”moto”,”nec-“,”netfront”,”newgen”,”nexian”,”nf-browser”,”nintendo”,”nitro”,”nokia”,”nook”,”novarra”,”obigo”,”palm”,”panasonic”,”pantech”,”philips”,”phone”,”pg-“,”playstation”,”pocket”,”pt-“,”qc-“,”qtek”,”rover”,”sagem”,”sama”,”samu”,”sanyo”,”samsung”,”sch-“,”scooter”,”sec-“,”sendo”,”sgh-“,”sharp”,”siemens”,”sie-“,”softbank”,”sony”,”spice”,”sprint”,”spv”,”symbian”,”tablet”,”talkabout”,”tcl-“,”teleca”,”telit”,”tianyu”,”tim-“,”toshiba”,”tsm”,”up.browser”,”utec”,”utstar”,”verykool”,”virgin”,”vk-“,”voda”,”voxtel”,”vx”,”wap”,”wellco”,”wig browser”,”wii”,”windows ce”,”wireless”,”xda”,”xde”,”zte”);
?
??? $is_mobile = false;
?
??? foreach ($mobile_agents as $device) {
?
??????? if (stristr($user_agent, $device)) {
?
??????????? $is_mobile = true;
?
??????????? break;
?
??????? }
?
??? }
?
??? return $is_mobile;
?
}

此函数用户判断是不是手机端访问的网站，使用方法在入口文件或者公共文件当初调用：

if(is_mobile()){

//跳转到手机

}else{

//跳转到网页版地址

}