php网站判断用户是否是手机访问的方法_php实例

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php网站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。

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.php.cn/');
  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：（经过测试，很全面，推荐使用）

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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;