PHP 判断访问来自手机端还是PC端

$mobile_browser++;

m o b i l e u a = s t r t o l o w e r ( s u b s t r ( mobile_ua = strtolower(substr( mobileu​a=strtolower(substr(_SERVER[‘HTTP_USER_AGENT’],0,4));

$mobile_agents = array(

'w3c ',‘acs-’,‘alav’,‘alca’ 《一线大厂Java面试题解析+后端开发学习笔记+最新架构讲解视频+实战项目源码讲义》无偿开源 威信搜索公众号【编程进阶路】 ,‘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 “mobile”;

else