php判断用户是否手机访问代码

5年以前 | 阅读数：795 次 | 编程语言：PHP

随着移动设备的普及，网站也会迎来越来越多移动设备的访问。用适应PC的页面，很多时候对手机用户不友好，那么有些时候，我们需要判断用户是否用手机访问，如果是手机的话，就跳转到指定的手机友好页面。这里就介绍一下，如何判断用户是否用手机访问。

自定义的函数如下：


    $agent = check_wap();
    if( $agent )
    {
     header('Location: http://www.jb51.net');
     exit;
    }
    // check if wap
    function check_wap(){
     // 先检查是否为wap代理，准确度高
     if(stristr($_SERVER['HTTP_VIA'],"wap")){
       return true;
     }
     // 检查浏览器是否接受 WML.
     elseif(strpos(strtoupper($_SERVER['HTTP_ACCEPT']),"VND.WAP.WML") > 0){
       return true;
     }
     //检查USER_AGENT
     elseif(preg_match('/(blackberry|configuration\/cldc|hp |hp-|htc |htc_|htc-|iemobile|kindle|midp|mmp|motorola|mobile|nokia|opera mini|opera |Googlebot-Mobile|YahooSeeker\/M1A1-R2D2|android|iphone|ipod|mobi|palm|palmos|pocket|portalmmm|ppc;|smartphone|sonyericsson|sqh|spv|symbian|treo|up.browser|up.link|vodafone|windows ce|xda |xda_)/i', $_SERVER['HTTP_USER_AGENT'])){
       return true;      
     }
     else{
       return false; 
     }
    }

再来一个从PHP框架剥离的判断是否为手机移动终端的函数：


    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; 
    }

再给大家分享一个个人使用的


    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true
        if(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;
    }

以上所述就是本文的全部内容了，希望大家能够喜欢。