PHP Predefined Variables

Server Name: lojain.soisweb.uwm.edu

Current Script: /infost440/a3/predefined.php

What They Mean

SERVER_NAME displays the name of the server that is hosting the webpage. PHP_SELF displays the path and filename of the PHP script that is currently running.

Explanation

Predefined variables are variables that PHP automatically provides for programmers. They contain useful information about things such as the server, request, session, cookies, and user input. Unlike variables that I create myself, predefined variables already exist in PHP and can be accessed when the program needs that information.