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Home » Codeigniter » How to use Hooks in Codeigniter

How to use Hooks in Codeigniter

How to use Hooks in Codeigniter

Posted on June 10, 2018July 16, 2022 By XpertPhp No Comments on How to use Hooks in Codeigniter

Today, we will explain to you how to use hooks in Codeigniter Framework. let’s know, what are hooks in Codeigniter. The hook allows you to execute a script without changing the core files. so we give you an example of how to implement hooks in Codeigniter.

Read Also:
How to create custom helper in CodeIgniter

Table of Contents

  • Types of hooks in codeigniter
  • Enabling Hooks in Codeigniter
  • Define Hooks in Codeigniter
  • Create Controller

Types of hooks in codeigniter

There are two link files in CodeIgniter. One is the application/config/hooks.php folder and the other is the application/hooks folder.

Enabling Hooks in Codeigniter

In this step, we have to change the hook configuration. now we will open the “application/config/config.php” file and enable the hook.

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$config['enable_hooks'] = TRUE;

Define Hooks in Codeigniter

Now, the hooks are defined in the “application/config/hooks.php” file. so you can see below code.

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$hook['pre_controller'] = array(
        'class'    => 'MyClass',
        'function' => 'Myfunction',
        'filename' => 'Myclass.php',
        'filepath' => 'hooks',
        'params'   => array('beer', 'wine', 'snacks')
);

Class: The name of the class you wish to invoke. If you prefer to use a procedural function instead of a class, leave this item blank.
Function: The function (or method) name you wish to call.
Filename: The file name containing your class/function.
Filepath: The name of the directory containing your script. Note: Your script must be located in a directory INSIDE your application/ directory, so the file path is relative to that directory.

Create Controller

Finally, we will create a Myfirsthook.php file in the “application/hooks/” directory and paste the below code into this controller.

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<?php
   class Myfirsthook extends CI_Controller {
    
      public function index() {
         echo "Hi, Welcome To In My First Hook";
      }
  }
?>

Now, We will define the hook using the below code (in the above step2).

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$hook['pre_controller'] = array(
    'class' => 'Myfirsthook',
    'function' => 'index',
    'filename' => 'Myfirsthook.php',
    'filepath' => 'hooks',
    'params' => array()
   );

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