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();
if( $agent )
{
exit;
}
// check if wap
function check_wap(){
// 先检查是否为wap代理，准确度高
if(stristr($_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;
}
}
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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()
{
$_SERVER['ALL_HTTP'] = isset($_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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再给大家分享一个个人使用的
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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;
}
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以上所述就是本文的全部内容了，希望大家能够喜欢。