如何在 CodeIgniter 中建立和使用自訂助手？

Creating Custom Helpers in CodeIgniter

In CodeIgniter, it's often necessary to perform repetitive tasks with arrays. While extending existing helpers is an option, sometimes creating a custom helper is more suitable. Here's how to create and use a custom helper called "loops_helper.php":

Creating the Helper File

Create a new PHP file called loops_helper.php and place the following code in it:

<?php
if (!defined('BASEPATH')) exit('No direct script access allowed');

if (!function_exists('test_method')) {
    function test_method($var = '') {
        return $var;
    }
}

Save the file in the application/helpers directory.

Using the Helper

To use the custom helper, you can include it in your controllers, models, or views using the load helper function:

$this->load->helper('loops_helper');

echo test_method('Hello World');

Autoloading the Helper

If you need to use the helper in multiple locations, you can add it to the autoload configuration file in application/config/autoload.php:

$autoload['helper'] = array('loops_helper');

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