I have got a website which does not use a CMS. I have got one administrator login that can access all the data and administrates the users. I want to split administrator account into a user management and a data management role for security purposes. 
The website is very basic, a few php files which very basic php user authetication.
I have access to the MySQL databases.<p>I would like to create two different users with different permissions, and different access rights; Does anyone have any suggestions? or point me in the correct destination.
Web user privileges using PHP