当我以不存在的路线访问Class时，如何在codeIgniter中设置默认功能？ [英] How to set default function in codeIgniter when I visit Class with non-existent route?

问题描述

像这样的控制器：

class Abc extends CI_controller{
  public function index(){...}

  public function f1(){...} 
}

如果url为 http：// host / app / Abc / index 则获取函数索引

如果url为 http：// host / app / Abc / f1 会得到函数f1

如果url是 http：// host / app / Abc 会得到函数索引，因为它是默认值

但是，如果url是 http：// host / app / Abc / f2 则会显示404找不到

If url is http://host/app/Abc/index it get function index
If url is http://host/app/Abc/f1 it get function f1
If url is http://host/app/Abc it get function index because it is default
But if url is http://host/app/Abc/f2 it print 404 not found

我希望如果url是 http：// host / app / Abc / f2 索引功能。

如果无法执行此操作，我想自动添加新功能，该怎么办？

I expected that if url is http://host/app/Abc/f2 it can turn to index function.
If can't do this,I want to add new function automatically,What should I do?

编辑

我只想在特定的类中使用它，我可以编辑全局路由吗？

EDIT
I want to use it in just a specific class, can I edit global routing? How?

推荐答案

您可以通过两种方式进行操作：首先编辑routes.php文件，然后将404_override更改为控制器功能，这将重定向您的所有对该控制器功能的404请求

Two ways you can do it first edit routes.php file and change 404_override to controller function this will redirect all your 404 request to that controller function

form
$route['404_override'] = 'welcome';

to
$route['404_override'] = 'ABC/index';

第二个选项在控制器内，您可以使用_remap方法/函数来检查函数/方法是否存在。控制器将是这样

second option is within controller you can use _remap method/function to check either function/method exist or not. controller will be like this

class Abc extends CI_controller{

  function _remap($method_name = 'index'){

             if(!method_exists($this, $method_name)){
                $this->index();
             }
             else{
                $this->{$method_name}();
             }
         }

  public function index(){...}

  public function f1(){...} 
}

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