Server Name: jbsiburt.soisweb.uwm.edu
Server Software: Apache
No query string provided.
Predefined variables in PHP, also known as superglobals, are built-in variables that are always accessible, regardless of scope. They provide information about the server, environment, and user input, and are essential for handling data in web applications.
$_SERVER: This superglobal contains information about headers, paths, and script locations. For example, `$_SERVER['SERVER_NAME']` returns the name of the server.
$_GET: This superglobal is used to collect data sent in the URL query string. For example, `$_GET['query']` retrieves the value of the 'query' parameter from the URL.