Codeigniter自动加载控制器不起作用

Question

I have various controller is core/ folder named core/my_controller.php and other controllers in libraries/ folder as libraries/user_controller.php , libraries/frontend_controller.php . Now I am using this code below in config.php to autoload these files. But I dont think its working.

I am seeing this error message Fatal error: Class 'MY_Controller' not found in /home/manumakeadmin/manumake.com/2d/application/libraries/frontend_controller.php on line 3

function __autoload($classname) {

    if (strpos($classname, 'CI_') !== 0) {
        $file = APPPATH . 'libraries/' . $classname . '.php';
        if (file_exists($file) && is_file($file)) {
            @include_once($file);
        }
    }
}

EDIT

I can make it work by manually including the files as

<?php
include_once APPPATH.'core/my_controller.php';

class Frontend_controller extends MY_Controller
{

But I was wondering if I could make the autoload code to work

Answer 1

There is also autoloading non-ci classes technique documented in those two links and mentioned before.

Adding an snippet to config.php to load those classes does the trick.

function __autoload($class)
{
    if (substr($class,0,3) !== 'CI_')
    {
        if (file_exists($file = APPPATH . 'core/' . $class . EXT))
        {
            include $file;
        }
    }
}

and adding your base class in application/core/Base_Controller.php

Answer 2

Library file names and class names must match and be capitalised - Frontend_controller.php

When extending a core class , the file name must also match the class name. Capitalise the prefix and the first letter of the class name in the file: MY_Controller.php The prefix can be set in: application/config/config.php

Also ensure that your files are in the application directory, rather than system . This seems to be the case, but it's worth checking.

It's always a good idea to check the user guide for naming conventions. For example, model class names must have the first letter capitalised and the rest lowercase; the file name should be all lower case and match the class name.

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However, it's very important to realise that libraries in CodeIgniter aren't intended for extending core classes , for example CI_Controller , which I assume MY_Controller is extending. Libraries should be used to:

• create entirely new libraries.
• extend native libraries.
• replace native libraries.

I think it's likely that your Frontend_controller would be better located in: application/controllers/