What is routing in CodeIgniter?

1.	What is routing in CodeIgniter?
Answer» Routing is a technique used in CodeIgniter, by which you can define your URLs BASED on the REQUIREMENT INSTEAD of using the predefined URLs. So, WHENEVER there is a request made and MATCHES the URL pattern defined by us, it will automatically direct to the specified controller and function. A URL string and its corresponding controller class or method are in a one-to-one relationship here. The URI segments usually follow this pattern: example.com/class/function/id/. All routing rules are defined in the application/config/routes.php file of CodeIgniter.

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