How to set required field in php and html ?

Question

Required

Answer 1

In html, simply add the required keyword in the input tag.
In php, just check if your post variable (or get but I strongly recommend post) is set and not empty! 😊

Answer 2

do remember "required" attribute is available only in html5.
also allow form to be submitted only when all required fields are filled, then php side validation not require only.