CodeIgniter is a PHP MVC framework for developing applications rapidly. CodeIgniter provides out of the box libraries for connecting to the database and performing various operations. Like sending emails, uploading files, managing sessions, etc.
Existing CodeIgniter files can be edited easily, and a developer can create what he needs to develop based on application. Customization of existing files is quite simple, and it never confuses the beginners.
Keep your site safe and manage internal access with options to customize multiple levels of security permissions. PCI Data Security comes standard, login screens are CAPTCHA-equipped, and a secondary password prompt includes extra defense against unwanted breaches.
The form validation feature helps you to write the code in single line. You can use Effective validation framework system to write code simply without any error.