Auto increment in phpmyadmin

Question

I have an existing database using PHP, MySQL and phpMyAdmin.

When users become a member on my website, I need the system to create a unique membership number for the

Answer 1

There are possible steps to enable auto increment for a column. I guess the phpMyAdmin version is 3.5.5 but not sure.

Click on Table > Structure tab > Under Action Click Primary (set as primary), click on Change on the pop-up window, scroll left and check A_I. Also make sure you have selected None for Default