clear text password to ?

Never ever, ever... ever use clear text passwords.

Did I say ever?


Anyways... if whatever auth framework you're using doesn't support hashing your password, don't use it. If you're rolling your own, please read as much as you can so you know what you're doing. Take a look at the built in php password functions that can use something like bcrypt hashing

https://www.php.net/manual/en/ref.password.php


Did I already mention you should never store passwords in clear text?

Codeigniter is simply one of the tools you need to learn to be a successful developer. Always add more tools to your coding arsenal!