Problem with php project

Question

I'm stuck in the middle of php project. I have created a registration form to enter my website. Here I want to register a user after checking its user ID. I don't know how to do it. However I know displaying and inserting data from form to phpmyadmin!

Answer 1

What user id

Answer 2

I know that.. actually I'm asking the process.plz help. i know the logic but don't know how to implement it in php!

Answer 3

Toni Isotalo I mean when someone selects a user ID then at submit button click, it is checked if the user exist or not..also i want to show it in the registration form so that we don't have to jump from this part to that.

Answer 4

mysqli or pdo