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How do you create custom helpers in CodeIgniter?

How do you create custom helpers in CodeIgniter?

To create custom helpers in CodeIgniter, follow these steps:

  1. Create the Helper File:

    • Navigate to the application/helpers/ directory in your CodeIgniter project.
    • Create a new PHP file for your custom helper. For example, if you want to name it myhelper, create a file called myhelper_helper.php.
    • Inside this file, define your custom functions. Each function should be a standalone global function, not part of a class.

Example

<?php
<?php
function custom_function() {
    return "This is my custom helper function!";
}
?>
?>

Load the Custom Helper:

  • Once your helper is created, you need to load it in the controller or model where you want to use it. Use the $this->load->helper('myhelper') function to load your helper.

Example

<?php
class MyController extends CI_Controller {
    public function index() {
        // Load the custom helper
        $this->load->helper('myhelper');
        
        // Use the helper function
        echo custom_function();
    }
}
?>

Auto-Loading (Optional):

  • If you want to load your custom helper automatically across your entire application, you can add it to the autoload.php configuration file located in the application/config directory.

Add the helper name (without _helper) in the array like this:

Example

<?php
$autoload['helper'] = array('myhelper');
?>

By following these steps, you can easily create and use custom helpers in CodeIgniter to keep your reusable functions organized and accessible.

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