How to disable a submit button after submission in PHP?

Question

I browsed through the other questions on this issue but couldn\'t find a satisfactory answer. I have a quiz website where the user selects an option from four options and then c

Answer 1

Try this. You might want to pass the value of each answer to a PHP file that performs backend work via AJAX.

   A

   B

   C

   D


   

More info about jQuery's AJAX call here.