PHP中通过HTTP_USER_AGENT判断是否为手机移动终端的函数代码

有时候很实用在一些场合，留住备用吧

复制代码代码如下:
function is_mobile_request（）
    {
      $_SERVER["ALL_HTTP"] = isset（$_SERVER["ALL_HTTP"]）？ $_SERVER["ALL_HTTP"] : "";
      $mobile_browser = "0";
      if（preg_match（"/（up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone|iphone|ipad|ipod|android|xoom）/i", strtolower（$_SERVER["HTTP_USER_AGENT"]）））
        $mobile_browser++;
      if（（isset（$_SERVER["HTTP_ACCEPT"]）） and （strpos（strtolower（$_SERVER["HTTP_ACCEPT"]）,"application/vnd.wap.xhtml+xml"）！== false））
        $mobile_browser++;
      if（isset（$_SERVER["HTTP_X_WAP_PROFILE"]））
        $mobile_browser++;
      if（isset（$_SERVER["HTTP_PROFILE"]））
        $mobile_browser++;
      $mobile_ua = strtolower（substr（$_SERVER["HTTP_USER_AGENT"],0,4））;
      $mobile_agents = array（
            "w3c ","acs-","alav","alca","amoi","audi","avan","benq","bird","blac",
            "blaz","brew","cell","cldc","cmd-","dang","doco","eric","hipt","inno",
            "ipaq","java","jigs","kddi","keji","leno","lg-c","lg-d","lg-g","lge-",
            "maui","maxo","midp","mits","mmef","mobi","mot-","moto","mwbp","nec-",
            "newt","noki","oper","palm","pana","pant","phil","play","port","prox",
            "qwap","sage","sams","sany","sch-","sec-","send","seri","sgh-","shar",
            "sie-","siem","smal","smar","sony","sph-","symb","t-mo","teli","tim-",
            "tosh","tsm-","upg1","upsi","vk-v","voda","wap-","wapa","wapi","wapp",
            "wapr","webc","winw","winw","xda","xda-"
            ）;
      if（in_array（$mobile_ua, $mobile_agents））
        $mobile_browser++;
      if（strpos（strtolower（$_SERVER["ALL_HTTP"]）, "operamini"）！== false）
        $mobile_browser++;
      // Pre-final check to reset everything if the user is on Windows
      if（strpos（strtolower（$_SERVER["HTTP_USER_AGENT"]）, "windows"）！== false）
        $mobile_browser=0;
      // But WP7 is also Windows, with a slightly different characteristic
      if（strpos（strtolower（$_SERVER["HTTP_USER_AGENT"]）, "windows phone"）！== false）
        $mobile_browser++;
      if（$mobile_browser>0）
        return true;
      else
        return false;
    }

文章来源：http://yi1.com.cn/posts/781

php 根据HTTP_USER_AGENT 判断用户浏览器类型
复制代码代码如下:
function browsers（）{
   global $HTTP_USER_AGENT ;
   if （isset（$HTTP_USER_AGENT））{
    $sAgent = $HTTP_USER_AGENT;
   }else{
    $sAgent = $_SERVER["HTTP_USER_AGENT"];
   }
   if （strpos（$sAgent,"MSIE"）！== false && strpos（$sAgent,"mac"） === false && strpos（$sAgent,"Opera"） === false）{
    $iVersion = （float）substr（$sAgent,strpos（$sAgent,"MSIE"） + 5,3）;
    return （$iVersion >= 5.5） ;
   }else if （strpos（$sAgent,"Gecko/"）！== false）{
    $iVersion = （int）substr（$sAgent,strpos（$sAgent,"Gecko/"） + 6,8）;
    return （$iVersion >= 20030210） ;
   }else{
    return false;
   }
}