fix: [php] Use only the path to identify route

Author: nterbogt

php/index.php

@@ -2,12 +2,13 @@
 
 require __DIR__ . '/vendor/autoload.php';
 
-# Set up the route handlers.
+// Set up the route handlers.
 use App\Route\Metrics;
 use App\Route\Headers;
 
 // Basic routing
-switch ($_SERVER['REQUEST_URI']) {
+$uri_components = parse_url($_SERVER['REQUEST_URI']);
+switch ($uri_components['path']) {
   case '/metrics':
     return Metrics::render();
   case '/headers':