Using the GET method in a PHP form
This tutorial will cover how PHP handles form data posted via the ‘GET’ method. Introduction to the query string GET data comes from the URL itself, and will typically follow the name of the script file in the URL. The start of GET data is indicated with a question mark (?). The name of the field is followed by an equal sign (=) and the value of the field. Each field is then separated by an ampersand (&).