Everything you need to know about your server

server.php

<?php
	echo "PHP_SELF: " . $_SERVER['PHP_SELF'];
	echo "<br>";
	echo "GATEWAY_INTERFACE: " . $_SERVER['GATEWAY_INTERFACE'];
	echo "<br>";
	echo "SERVER_ADDR: " . $_SERVER['SERVER_ADDR'];
	echo "<br>";
	echo "SERVER_NAME: " . $_SERVER['SERVER_NAME'];
	echo "<br>";
	echo "SERVER_SOFTWARE: " . $_SERVER['SERVER_SOFTWARE'];
	echo "<br>";
	echo "SERVER_PROTOCOL: " . $_SERVER['SERVER_PROTOCOL'];
	echo "<br>";
	echo "REQUEST_METHOD: " . $_SERVER['REQUEST_METHOD'];
	echo "<br>";
	echo "REQUEST_TIME: " . $_SERVER['REQUEST_TIME'];
	echo "<br>";
	echo "QUERY_STRING: " . $_SERVER['QUERY_STRING'];
	echo "<br>";
	echo "HTTP_ACCEPT: " . $_SERVER['HTTP_ACCEPT'];
	echo "<br>";
	echo "HTTP_ACCEPT_CHARSET: " . $_SERVER['HTTP_ACCEPT_CHARSET'];
	echo "<br>";
	echo "HTTP_HOST: " . $_SERVER['HTTP_HOST'];
	echo "<br>";
	echo "HTTP_REFERER: " . $_SERVER['HTTP_REFERER'];
	echo "<br>";
	echo "HTTPS: " . $_SERVER['HTTPS'];
	echo "<br>";
	echo "REMOTE_ADDR: " . $_SERVER['REMOTE_ADDR'];
	echo "<br>";
	echo "REMOTE_HOST: " . $_SERVER['REMOTE_HOST'];
	echo "<br>";
	echo "REMOTE_PORT: " . $_SERVER['REMOTE_PORT'];
	echo "<br>";
	echo "SCRIPT_FILENAME: " . $_SERVER['SCRIPT_FILENAME'];
	echo "<br>";
	echo "SERVER_ADMIN: " . $_SERVER['SERVER_ADMIN'];
	echo "<br>";
	echo "SERVER_PORT: " . $_SERVER['SERVER_PORT'];
	echo "<br>";
	echo "SERVER_SIGNATURE: " . $_SERVER['SERVER_SIGNATURE'];
	echo "<br>";
	echo "PATH_TRANSLATED: " . $_SERVER['PATH_TRANSLATED'];
	echo "<br>";
	echo "HTTP_USER_AGENT: " . $_SERVER['HTTP_USER_AGENT'];
	echo "<br>";
	echo "SCRIPT_NAME: " . $_SERVER['SCRIPT_NAME'];
	echo "<br>";
	echo "SCRIPT_URI: " . $_SERVER['SCRIPT_URI'];
?>