How to hyperlink to another page but staying Logged-In?

Users are not logged in automatically after the registration. You may want to use AfterSuccessfulLogin event for this purpose.

I am using the AfterSuccessfulLogin event that points to a custom .php page after logging in. I am not talking about after registration.
I want to create a link on this custom .php page like this:

EDIT YOUR AD
when you click this link, you should be taken to the EDIT page for whatever User is logged in.
What include files should I have on this custom .php file and what are the variables that should be included in the hyperlink? What should this hyperlink look like?

It all depends on your database structure.
I recommend you to proceed to the Edit page and copy and paste the URL to the new PHP page your developing.

The only problem with cutting and pasting the URL to the new PHP page is that I need this function to be dynamic, meaning that the link changes its destination depending on the users that are logged in.
How can I check for the current logged in username or ID and pass that as a variable in the hyperlink?

It all depends on your database structure.

answered in another thread.