在使用浏览器发起的 HTTP 请求中,通常会包含一个识别标识。它名为 User Agent,简称 UA。它是一串包含了客户端基础信息的字符串。因此可以通过它可以方便的获取客户端的操作系统,语言,浏览器和版本信息。
1、PHP获取UA标识
获取代码:- echo $_SERVER['HTTP_USER_AGENT'];
复制代码 运行结果:- Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36
复制代码 2、创建一个可以根据得到的字符串匹配出访问方式的PHP函数,整个PHP判断代码如下:
- $user_agent = $_SERVER['HTTP_USER_AGENT'];
- function isMobile($ua)
- {
- //目前手机系统很多种,为了尽量准确,所以建立一个手机系统关键词的数组。
- $mobile_agents = array ('iphone','android','phone','mobile','wap','netfront','java','opera mobi',
- 'opera mini','ucweb','windows ce','symbian','series','webos','sony','blackberry','dopod',
- 'nokia','samsung','palmsource','xda','pieplus','meizu','midp','cldc','motorola','foma',
- 'docomo','up.browser','up.link','blazer','helio','hosin','huawei','novarra','coolpad',
- 'techfaith','alcatel','amoi','ktouch','nexian','ericsson','philips','sagem','wellcom',
- 'bunjalloo','maui','smartphone','iemobile','spice','bird','zte-','longcos','pantech',
- 'gionee','portalmmm','jig browser','hiptop','benq','haier','^lct','320x320','240x320',
- '176x220','windows phone','cect','compal','ctl','lg','nec','tcl','daxian','dbtel','eastcom',
- 'konka','kejian','lenovo','mot','soutec','sgh','sed','capitel','panasonic','sonyericsson',
- 'sharp','panda','zte','acer','acoon','acs-','abacho','ahong','airness','anywhereyougo.com',
- 'applewebkit/525','applewebkit/532','asus','audio','au-mic','avantogo','becker','bilbo',
- 'bleu','cdm-','danger','elaine','eric','etouch','fly ','fly_','fly-','go.web','goodaccess',
- 'gradiente','grundig','hedy','hitachi','htc','hutchison','inno','ipad','ipaq','ipod',
- 'jbrowser','kddi','kgt','kwc','lg ','lg2','lg3','lg4','lg5','lg7','lg8','lg9','lg-','lge-',
- 'lge9','maemo','mercator','meridian','micromax','mini','mitsu','mmm','mmp','mobi','mot-',
- 'moto','nec-','newgen','nf-browser','nintendo','nitro','nook','obigo','palm','pg-',
- 'playstation','pocket','pt-','qc-','qtek','rover','sama','samu','sanyo','sch-','scooter',
- 'sec-','sendo','sgh-','siemens','sie-','softbank','sprint','spv','tablet','talkabout',
- 'tcl-','teleca','telit','tianyu','tim-','toshiba','tsm','utec','utstar','verykool','virgin',
- 'vk-','voda','voxtel','vx','wellco','wig browser','wii','wireless','xde','pad','gt-p1000');
- $ismobile = false;
- foreach ($mobile_agents as $device) {
- if (stristr($ua, $device)) {
- $ismobile = true;
- break;
- }
- }
- return $ismobile;
- }
- if(isMobile($user_agent)){
- echo "在移动端访问";
- }else{
- echo "在电脑端访问";
- }
复制代码 |