function is_mobile() {
$user_agent = $_server['http_user_agent'];$mobile_agents = array(240x320,acer,acoon,acs-,abacho,ahong,airness,alcatel,amoi,android,anywhereyougo.com,applewebkit/525,applewebkit/532,asus,audio,au-mic,avantogo,becker,benq,bilbo,bird,blackberry,blazer,bleu,cdm-,compal,coolpad,danger,dbtel,dopod,elaine,eric,etouch,fly ,fly_,fly-,go.web,goodaccess,gradiente,grundig,haier,hedy,hitachi,htc,huawei,hutchison,inno,ipad,ipaq,ipod,jbrowser,kddi,kgt,kwc,lenovo,lg ,lg2,lg3,lg4,lg5,lg7,lg8,lg9,lg-,lge-,lge9,longcos,maemo,mercator,meridian,micromax,midp,mini,mitsu,mmm,mmp,mobi,mot-,moto,nec-,netfront,newgen,nexian,nf-browser,nintendo,nitro,nokia,nook,novarra,obigo,palm,panasonic,pantech,philips,phone,pg-,playstation,pocket,pt-,qc-,qtek,rover,sagem,sama,samu,sanyo,samsung,sch-,scooter,sec-,sendo,sgh-,sharp,siemens,sie-,softbank,sony,spice,sprint,spv,symbian,tablet,talkabout,tcl-,teleca,telit,tianyu,tim-,toshiba,tsm,up.browser,utec,utstar,verykool,virgin,vk-,voda,voxtel,vx,wap,wellco,wig browser,wii,windows ce,wireless,xda,xde,zte);$is_mobile = false;foreach ($mobile_agents as $device) { if (stristr($user_agent, $device)) { $is_mobile = true; break; }}return $is_mobile;
}