How to use my own library multiple times

Suppose in your library you had a file called Library_test that looked like this:

PHP Code:

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

class Library_test {
  public function test_function($a, $b)
  {
       // just add them up
       $c = $a + $b;
       return $c;
  }
} 


Then in your controller you would load the library and use this:

PHP Code:

 $this->load->library('library_test');
 
  $result = $this->library_test->test_function(2, 4); 


I hope that helps,

Best wishes,

Paul.