Predefined Variables

Predefined vairables allow a user to retrieve important and frequently used information.

Below are some examples of information that is important to know regarding file paths, how the page is being viewed, and what server is being used.

Path directory for this file:
/home/kdmensah/public_html/infost440/a3/predefined.php

Viewing this page using:
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

This server is running:
Apache

These variables ALWAYS start with $_SERVER.