PHP判断用户是否手机访问

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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( $agent ){    header('Location: http://www.lituanmin.net');    exit;}// check if wapfunction check_wap(){    // 先检查是否为wap代理,准确度高    if(stristr($_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;   }


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