vantuk.soisweb.uwm.edu
/infost440/a3/predefined.php
SERVER_NAME shows the name of the server that is running the webpage. PHP_SELF shows the location or filename of the PHP page that is currently running.
Predefined variables are variables that PHP automatically creates for us. They contain useful information about the server, webpage, request, and other information. We do not have to create these variables ourselves because PHP already provides them when the webpage is running.
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