Codeigniter - 如何根据子域是否存在路由控制器 [英] Codeigniter - How to route controller based on whether a subdomain exists or not

问题描述

我在codeigniter中创建一个SaaS Web应用程序，我试图根据是否存在子域来确定如何路由到特定的控制器。

目前我有它，所以如果你放置一个 subdomain.example.com 的URL，我的默认控制器检查

  public function __construct（） ）
 {
 parent :: __ construct（）; 
 $ subdomain_arr = explode（'。'，$ _SERVER ['HTTP_HOST']，2）; //创建各个部分
 $ subdomain_name = $ subdomain_arr [0]; // assigns the first part 
 // echosubdomain_name = $ subdomain_name; 
 
 //如果子域不存在，重定向到错误页面
 if（！$ this-> subdomainExists（$ subdomain_name））{
 redirect（'error / index '）; 
} else {
 $ this-> subdomain = $ subdomain_name; 
} 
} 
  

这适用于用户输入子域的网址，但现在如果用户输入没有子域（例如 example.com ）的网址，我想要使用不同的控制器。

什么是实现这个的最好方法？我想是这样做的，但是每次有人去 example.com 时发生重定向似乎并不是最好的。

  //如果没有输入子域，重定向到控制器'aDifferentController'
 //如果输入了子域，请检查它是否存在于数据库中如果没有重定向到错误页面。 
 if（输入的URL不包含子域）{
 redirect（'aDifferentController'）; 
} else if（！$ this-> subdomainExists（$ subdomain_name））{
 redirect（'error / index'）; 
} else {
 $ this-> subdomain = $ subdomain_name; 
} 
  

解决方案

为什么不有条件地声明基于路由

  
在routes.php中
 
 
 < if（strstr（$ _ SERVER ['HTTP_HOST']，'some-subdomain.mydomain.com'））{
 $ route ['uristring'] =controller / method 
} 
  

I'm creating a SaaS web app in codeigniter and i'm trying to determine how to route to a specific controller based on whether a subdomain exists or not.

Currently I have it so if you put a url of subdomain.example.com, my default controller checks whether the subdomain in the url exists in the database, and if it does not, it displays the error page.

public function __construct() 
    {
        parent::__construct();
        $subdomain_arr = explode('.', $_SERVER['HTTP_HOST'], 2); //creates the various parts  
        $subdomain_name = $subdomain_arr[0]; //assigns the first part
        //echo "subdomain_name = $subdomain_name";

        // if the subdomain does not exist, redirect to error page
        if(!$this->subdomainExists($subdomain_name)) {
            redirect('error/index');
        } else {
            $this->subdomain = $subdomain_name;
        }
    }

This works great for urls where a user enters a subdomain, but now if the user enters a url without a subdomain such as example.com, I want a different controller to be used.

What is the best way to achieve this? I was thinking of doing the following, but it doesn't seem best to have a redirect occuring every time someone goes to example.com.

// if no subdomain was entered, redirect to controller 'aDifferentController'
// else if a subdomain was entered, check that it exists in the database and if not redirect to an error page.
if(the url entered does not contain a subdomain) {
    redirect('aDifferentController');
} else if(!$this->subdomainExists($subdomain_name)) {
    redirect('error/index');
} else {
    $this->subdomain = $subdomain_name;
}

解决方案

Why not conditionally declare routes based on the subdomain.

in routes.php, do this

if (strstr($_SERVER['HTTP_HOST'], 'some-subdomain.mydomain.com')) {
 $route['uristring'] = "controller/method";
}

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