danci/www.hanlinyuanonline.com/Application/Api/Controller/DownloadController.class.php

<?php
namespace Api\Controller;

use Think\Controller;

class DownloadController extends Controller{

    public function index(){
        $checkos = $this->checkos();
        switch ($checkos) {
            case "weibo":
                $default_url="http://www.pengcieredu.com/";
                header("Location: ".$default_url);
                break;
            case "ios":
                if($this->is_weixin_ios()){//weixin
                    $downurl="https://itunes.apple.com/cn/app/%E7%A2%B0%E8%AF%8D%E5%84%BF-%E5%85%A8%E8%83%BD%E7%9A%84%E5%8D%95%E8%AF%8D%E8%AE%B0%E5%BF%86%E5%8A%A9%E6%89%8B/id1353692603?mt=8";
                }
                break;
            case "android":
                if($this->is_weixin_ios()){//weixin
                   // $downurl="https://mobile.baidu.com/item?docid=25707250";
		    $downurl="https://sj.qq.com/myapp/detail.htm?apkName=com.hanlinyuan.vocabularygym";
                }else{
                    //取最新版的软件
                    $downurl='http://www.hanlinyuanonline.com/soft/pce_v1.8.6_19_186_jiagu_sign.apk';
                }
                break;
            default:
                $downurl="";
                break;
        }
        
        if($downurl){
            //echo $downurl;
            header("Location: ".$downurl);
        }else{
            //die("download error!");
            $default_url="http://www.pengcieredu.com/";
            header("Location: ".$default_url);
        }
    }

    private function checkos(){
        $os = "";
        $userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);
        if (preg_match("/weibo/i", $userAgent)) {
            $os = "weibo"; // android客户端
        } elseif (preg_match("/(ipod|ipad|iphone)/", $userAgent)) {
            $os = "ios"; // IOS客户端
        } elseif (preg_match("/wp/", $userAgent)) {
            $os = 'wp'; // WinPhone客户端
        } elseif (preg_match("/android/i", $userAgent)) {
            $os = "android"; // android客户端
        } else {
            $os = 'otheros';
        }
        return $os;
    }
    
    /*判断是否是微信浏览器 这个方法不太靠谱*/
    private function is_weixin_ios(){
        if ( strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false) {
            return true;
        }
        return false;
    }
}