You are years old! The $_POST variable is used to collect values from a form with method="post". E.g. Welcome .
You are years old! Why use $_POST? Variables sent with HTTP POST are not shown in the URL. The POST requests are not idempotent. This means that they cannot be cached, and the server is recontacted every time the page is displayed. Because of this, it is not possible to bookmark the page. Variables have no length limit">