如何在codeigniter中列出所有控制器类名？

Question

I want to create user authentication with access level for my site back end. I want get and list all controller class name for create user group creation.

Thanks in advance,

Logan

Answer 1

Your best bet for this is to explicitly write them into a new config file.

$config['controllers'] = array(
    'blog',
    'events',
    'news', // etc.
);

Otherwise, you will be scanning directories which will eat up resources. But you could do it like this:

    $controllers = array();
    $this->load->helper('file');

    // Scan files in the /application/controllers directory
    // Set the second param to TRUE or remove it if you 
    // don't have controllers in sub directories
    $files = get_dir_file_info(APPPATH.'controllers', FALSE);

    // Loop through file names removing .php extension
    foreach (array_keys($files) as $file)
    {
        $controllers[] = str_replace(EXT, '', $file);
    }
    print_r($controllers); // Array with all our controllers

Since file names match controller names, now you should have an array of all your controllers. This isn't perfect though for several reasons, but should work for most setups.

Personally I use a highly modified directory structure, so this wouldn't work for me, and some controllers I would want to ignore as well. Another option would be to cache the results to a file, but that's a separate tutorial.

I highly suggest defining them in a config file, this way you can store other useful information directly related to your access control and avoid the huge overhead of recursively scanning directories.