Last modified on July 23rd, 2019 by Vincy.

User registration or sign up is an integral part of many web applications and it is critical to get it right for the success of the application. It is the starting point of user engagement with your application.

It should be as simple as possible with best UI / UX. Implementing user registration functionality using PHP is a simple task and I will walk you through the steps with example in this article.

This example code can be separated into 3 parts.

The third step will be executed after ensuring that the user is not added already. This data uniqueness validation will be performed based on their email and username entered by them.

During registration we generally collect user information, who are ready to register with our application. Some of them will be mandatory and some of them will be optional.

So, this functionality may also include validation part to ensure about the non-emptiness and the format of the user data. The validation could be done either in client-side or server side.

Having validation at server-side is always better. You can choose to have it in client-side also for the ease of use of the users. But having at the server-side is not optional and a minimum requirement.

In this example, the registration form contains the fields Username, Name(Display Name), Password and Email. It also has the Confirm Password field to let the user to reenter his password for the confirmation. These two passwords will be compared later at the time of a .

By submitting this form, the user is expected to agree the terms and conditions. So a checkbox field is added before the Register button for ensuring it.

PHP User Registration Form Sign Up Username