[PHP] User Authentication

Hi, Can anyone recommend a good place on the web to learn about user authentication. I want users of my site to login with a username & password - once they are logged in they can see information customised to each separate user. Without being logged in the won't see any valuable information. Esp

[PHP] Extracting table names

Hi, I am relatively new to mysql - I'm developing a site using mysql & php. I need to populate a drop down menu with all of the table names in a database. I can do standard queries (SELECT * FROM blah WHERE ...) but I'm having trouble returning all of the table names. Can anyone help? Thanks,