方法一：
WordPress从3.5版起就已经在WordPress程序内部集成了移动设备判断检测函数。
使用 wp_is_mobile() 函数来判断不同的访问平台：
方法二：
在主题的 functions.php 内加上如下代码，代码中包含目前常见的移动端浏览器UserAgent，可以涵盖基本所有的手机上网设备。
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 as $device) {
if (stristr($user_agent, $device)) {
$is_mobile = true;
break;
}
}
return $is_mobile;
}
第二步：在自己主题的模板中使用以下的标签进行判断。
<?php if (is_mobile() ): ?>
<!--这里写上手机端的代码-->
<?php else: ?>
<!--这里写上PC端的代码-->
<?php endif ;?>
当然还有一种办法就是使用自适应主题来解决不同设备适配问题。
