这是一段php通用的判断移动浏览器的函数,原理比较简单,就是判断浏览器返回的user_agent,条件包括手机系统,品牌和窗口大小.
以wordpress为例,在主题的function.php内加上如下代码,我找了一些常见移动浏览器的useragent,其中有很多国内流行的手机浏览器,基本上可以涵盖可能会用手机上网的用户群了..

function is_mobile() { user_agent =_SERVER['HTTP_USER_AGENT']; mobile_browser = Array( "mqqbrowser", //手机QQ浏览器 "opera mobi", //手机opera "juc","iuc",//uc浏览器 "fennec","ios","applewebKit/420","applewebkit/525","applewebkit/532","ipad","iphone","ipaq","ipod", "iemobile", "windows ce",//windows phone "240x320","480x640","acer","android","anywhereyougo.com","asus","audio","blackberry","blazer","coolpad" ,"dopod", "etouch", "hitachi","htc","huawei", "jbrowser", "lenovo","lg","lg-","lge-","lge", "mobi","moto","nokia","phone","samsung","sony","symbian","tablet","tianyu","wap","xda","xde","zte" );is_mobile = false; foreach (mobile_browser asdevice) { if (stristr(user_agent,device)) { is_mobile = true; break; } } returnis_mobile;}

然后在主题任意模板如顶部加上如下判断:

 //怎样怎样..(这里可以添加一个mobile.css,如)

还需要注意的一点:不管是单独的WordPress主题还是自适应主题,都需要在头部<head>将添加下面meta,否者可能导致手机显示字体过小等问题。