使用wordpress建自适应网站时，要想在PC端网站与手机移动设备端网站显示不同的内容，就需要判断当前浏览设备是否为手机移动设备。如果是手机移动设备，跳转手机版，显示一套手机移动设备内容，否则，显示一套PC端网站版面。

WordPress可以通过纯代码的方法去判断跳转手机版并跳转，步骤如下：

第一步：在自己网站主题的 functions.php 内加上如下代码，目前已包含常见移动浏览器的useragent，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 as $device) {
        if (stristr($user_agent, $device)) {
            $is_mobile = true;
            break;
        }
    }
    return $is_mobile;
}

第二步：在自己网站主题任意模板，都可以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 ;?>

通过以上二步，我们就可以通过代码来判断手机移动设备并跳转手机版了。