What is the default URL pattern used in Codeigniter framework?

In CodeIgniter, URLs are designed to be search-engine and human-friendly.CodeIgniter uses a segment-based approach rather than using “query string” based approach.

abc.com/user/edit/ramesh

The default URL pattern in CodeIgniter consists of 4 main components. They are :

1. A server name (abc.com)
2. A Controller (user)
3. An Action or method (edit)
4. An optional action parameter (ramesh)

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