Newbie Transfering UserID from one table to the Next

[lwfox]

I am just learning PHP and have not been able to figure this out. What I am trying to do is create a user login page.  After the user has logged in it will take him to a form that has his name address etc.  After that there are other forms that the user will fill out, and I will extract that data and display it in a webpage.

 

I have been using Dreamweaver, and have created the attached two pages userID login and a basic_info page.  When I login I am successfully transferred to the basic info page.  When I enter that data, I get an error that userID can not be null.

 

I want to use the userID from the login table to be the userID in the basic_info table and all the other forms that I have created.

 

Please help this is driving me crazy.

 

 

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