PHP $_Server Variable - What is $_SERVER in PHP

• $_SERVER is a PHP super global variable which holds information about headers, paths, and script locations.

Sample Code

<?php
echo $_SERVER['PHP_SELF'];
echo "<br>";
echo $_SERVER['SERVER_NAME'];
echo "<br>";
echo $_SERVER['HTTP_HOST'];
echo "<br>";
echo $_SERVER['HTTP_USER_AGENT'];
echo "<br>";
echo $_SERVER['SCRIPT_NAME'];
?>

Output

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