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VistasVarious roles for one user in PHP
I have an idea of doing a back office for my website. The problem is that, when I introduce a user who has, for example, two roles, I want the user to choose the role to work with, but I can't figure out how to do that. I've tried so different things such as putting the two roles separate with commas in MySQL and separating them in PHP but it didn't work.
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let say you have a user table, and a user can have multiple role.
you can create a master table for role ( let say roles )
you can have a field on user table say user_roles -> it can have values like 1,2,4
note:- there should not be gaps between the numbers / comma
on the front-end you can take a mutiselect / tags UI element to input role for the user.
to fetch the role of a user at server side - you can use explode() + in_array() to check the role if exists
EDIT:-
It requires validation when adding roles ( ie: which user's role is allowed to select when already selected specific types ) For authorization, the user's roles should be added to the session :- this will help when allowing the user to do tasks he is allowed to do.
you can take a third table to maintain user's roles ( as suggested by @ADyson ), this will help if you want to join tables based on user + roles but you will need to join roles table for getting user data when starting session for the user.