<?php
header('Content-Type: text/plain');
echo "=== SERVER VARIABLES ===\n";
echo "HTTP_HOST: " . ($_SERVER['HTTP_HOST'] ?? 'N/A') . "\n";
echo "REQUEST_URI: " . ($_SERVER['REQUEST_URI'] ?? 'N/A') . "\n";
echo "SCRIPT_NAME: " . ($_SERVER['SCRIPT_NAME'] ?? 'N/A') . "\n";
echo "PHP_SELF: " . ($_SERVER['PHP_SELF'] ?? 'N/A') . "\n";
echo "Working from: " . __FILE__ . "\n";
