1 public function AndroidOrIOS(){ 2     //dump($_SERVER); 3     $useragent=strtolower($_SERVER[‘HTTP_USER_AGENT‘]); 4     $type=‘‘; 5     if(strpos($useragent,‘android‘)){ 6     　　$type=‘android‘; 7     } 8     if(strpos($useragent,‘iphone‘)||strpos($useragent,‘ipad‘)){ 9     　　$type=‘ios‘;10     }11     if(strpos($useragent,‘win64‘)||strpos($useragent,‘win32‘)){12     　　$type=‘windows‘;13     }14     echo $type;15 }