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;       }

function browsers(){    global $HTTP_USER_AGENT ;    if (isset($HTTP_USER_AGENT)){     $sAgent = $HTTP_USER_AGENT;    }else{     $sAgent = $_SERVER['HTTP_USER_AGENT'];    }    if (strpos($sAgent,'MSIE') !== false && strpos($sAgent,'mac') === false && strpos($sAgent,'Opera') === false){     $iVersion = (float)substr($sAgent,strpos($sAgent,'MSIE') + 5,3);     return ($iVersion >= 5.5) ;    }else if (strpos($sAgent,'Gecko/') !== false){     $iVersion = (int)substr($sAgent,strpos($sAgent,'Gecko/') + 6,8);     return ($iVersion >= 20030210) ;    }else{     return false;    }   }