First, create an entry HTML form capable of passing information to a secondary file. Next, create a Hypertext Preprocessor (PHP) file to accept the data and insert it into the database.

Processing form data in PHP is significantly simpler than in most other Web programming languages—a fact you’re undoubtedly already aware of if you’ve been using the language for a while.

Create an HTML Web page and capture the data with an HTML form, then pass the data from the form to a PHP script and use PHP to insert the form into MySQL. How to Embed a Login Box in HTML.