thinkphp判断访客为手机端或PC端的方法

define('APP_NAME','mobi');

define('APP_PATH','./mobi/');

//判断是否属手机 
//代码看上去很多，其实就是数组里面显得多而乱，不要被表面现象所吓倒哦！ 
 function is_mobile(){ 
    $user_agent = $_SERVER['HTTP_USER_AGENT']; 
 
    $mobile_agents = Array("240x320","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 $device) {//这里把值遍历一遍，用于查找是否有上述字符串出现过 
       if (stristr($user_agent, $device)) { //stristr 查找访客端信息是否在上述数组中，不存在即为PC端。 
            $is_mobile = true; 
            break; 
        } 
    } 
    return $is_mobile; 
} 
define('THINK_PATH','./CORE/'); 
if(is_mobile()){ //跳转至wap分组 
 echo '您是手机端访问的，已跳转到手机端'; 
     define('APP_NAME','mobi'); 
    define('APP_PATH','./mobi/'); 
}else{ 
 echo '你是PC端访问的'; 
     define('APP_NAME','Home'); 
    define('APP_PATH','./Home/');          
} 
 define('APP_DEBUG', false); 
require THINK_PATH.'core.php';