PHP CodeBase: 判断用户是否手机访问(转)

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：

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$agent = check_wap();

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if( $agent )

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{

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    header('Location: http://www.nowamagic.net');

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    exit;

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}

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// check if wap

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function check_wap(){

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    // 先检查是否为wap代理，准确度高

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    if(stristr($_SERVER['HTTP_VIA'],"wap")){

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        return true;

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    }

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    // 检查浏览器是否接受 WML.

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    elseif(strpos(strtoupper($_SERVER['HTTP_ACCEPT']),"VND.WAP.WML") > 0){

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        return true;

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   }

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   //检查USER_AGENT

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   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'])){

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        return true;           

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    }

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    else{

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        return false;  

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   }

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}

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：

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function is_mobile_request()  

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{  

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  $_SERVER['ALL_HTTP'] = isset($_SERVER['ALL_HTTP']) ?$_SERVER['ALL_HTTP'] : '';  

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  $mobile_browser = '0';  

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  if(preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone|iphone|ipad|ipod|android|xoom)/i',strtolower($_SERVER['HTTP_USER_AGENT'])))  

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    $mobile_browser++;  

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  if((isset($_SERVER['HTTP_ACCEPT'])) and(strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml') !== false))  

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    $mobile_browser++;  

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  if(isset($_SERVER['HTTP_X_WAP_PROFILE']))  

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    $mobile_browser++;  

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  if(isset($_SERVER['HTTP_PROFILE']))  

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    $mobile_browser++;  

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  $mobile_ua = strtolower(substr($_SERVER['HTTP_USER_AGENT'],0,4));  

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  $mobile_agents = array(  

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        'w3c ','acs-','alav','alca','amoi','audi','avan','benq','bird','blac',  

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        'blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno',  

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        'ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-',  

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        'maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-',  

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        'newt','noki','oper','palm','pana','pant','phil','play','port','prox',  

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        'qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar',  

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        'sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-',  

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        'tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp',  

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        'wapr','webc','winw','winw','xda','xda-' 

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        );  

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  if(in_array($mobile_ua, $mobile_agents))  

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    $mobile_browser++;  

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  if(strpos(strtolower($_SERVER['ALL_HTTP']), 'operamini') !== false)  

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    $mobile_browser++;  

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  // Pre-final check to reset everything if the user is on Windows  

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  if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'windows') !== false)  

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    $mobile_browser=0;  

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  // But WP7 is also Windows, with a slightly different characteristic  

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  if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'windows phone') !== false)  

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    $mobile_browser++;  

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  if($mobile_browser>0)  

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    return true;  

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  else

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    return false;  

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}