引用：

下面这个是能判断的，但是出现一个问题，就是ios版本的UC浏览器出现了一个极速模式，切换到了极速模式就判断不出来了。现在想单独判断UC浏览器下进行跳转。

1. 1. $userAgent = $_SERVER['HTTP_USER_AGENT'];
   2. if(strpos($userAgent,"iPhone") || strpos($userAgent,"iPad") || strpos($userAgent,"iPod")){
   3.     header("location:http://www.baidu.com");
   4. }else if(strpos($userAgent,"Android")){
   5.     header("location:http://www.google.com");
   6. }
      1. 解决了 原来在UC里面没有iPhone\iPad\iPod相关字样，加一个
         1. strpos($userAgent,"iPhone") || strpos($userAgent,"iPad") || strpos($userAgent,"iPod")
         改成
         1. strpos($userAgent,"iPhone") || strpos($userAgent,"iPad") || strpos($userAgent,"iPod") || strpos($userAgent,"iOS")
         就可以了