how i can create my library in codeigniter 4

this is easy in codeigniter 3 but i cant find this in codeigniter 4 document

I update the Google Recaptcha Class from version 3 to 4, here is an example
[Attachment = 1748]
and in system/Controller.php in the initController function, I define it in a global variable for all controller's $this->g_re = new Recaptcha ($request, $response);

Attached Files

  Recaptcha.php (Size: 4.05 KB / Downloads: 71)

this is easy in codeigniter 3 but i cant find this in codeigniter 4 document

It is even easier than V3. The only tricky bit is learning to use namespace.

Here's a very simple library

app/Libraries/MyCustomClass.php

PHP Code:

<?php namespace App\Libraries;

class MyCustomClass
{
 public function sayHi()
 {
 return "Hello World!";
 }
} 


Here's a simple example of using the custom library in a controller.

PHP Code:

<?php namespace App\Controllers;

use App\Libraries\MyCustomClass;  //so we can easily load the custom library

class Home extends BaseController
{
 public function index()
 {
 $mine = new MyCustomClass(); // loads and creates instance
 echo $mine->sayHi();
 }
} 


thanks a lot!
Codeigniter always the best and

If you need a single instance of a class, you can create a service that will return a shared instance of your library: https://codeigniter4.github.io/userguide...ed-classes