CodeIgniter Questions Asked in Companies

Routing is a technique by which you can define your URLs according to the requirement instead of using the predefined URLs. Routes can be classified in two ways, either using Wildcards or Regular Expressions. Wildcards There are two types of wildcards: :num−series containing only numbers matched. :any−series containing only characters matched. Regular Expression Regular expressions … Read more

You have to build a file name application/core/MY_Input.php and declare your class with Class MY_Input extends CI_Input {}to extend the native input class in CodeIgniter. To extend a class in CodeIgniter, you typically use the concept of inheritance. Here’s how you can extend a class in CodeIgniter: Create your custom class: First, you need to … Read more

Yes, we can add some extended functionality to a native library by adding one or two methods. It replaces the entire library with your version. So it is better to extend the class. Extending and replacing is almost identical with only following exceptions. The class declaration must extend the parent class. New class name and … Read more

It should be placed in application/libraries folder. In CodeIgniter, a newly created library is typically stored in the application/libraries directory within your project structure. This directory is where custom libraries should reside. By default, CodeIgniter looks for libraries in this directory when they are loaded. So, placing your newly created library in this directory ensures … Read more

There are three methods to create a library, Creating an entirely new library Extending native libraries Replacing native libraries To create a library in CodeIgniter, you can follow these steps: Create the Library File: Start by creating a PHP file for your library inside the application/libraries directory of your CodeIgniter project. The filename should match … Read more