diff --git a/src/_h5ai/server/php/index.php b/src/_h5ai/server/php/index.php
index 1f3f54b2..50333101 100644
--- a/src/_h5ai/server/php/index.php
+++ b/src/_h5ai/server/php/index.php
@@ -1,5 +1,8 @@
 <?php
 
+
+// bootstrap
+
 function normalize_path($path, $trailing_slash = false) {
 
 	$path = str_replace("\\", "/", $path);
@@ -16,12 +19,21 @@ function normalized_require_once($lib) {
 	require_once(APP_ABS_PATH . $lib);
 }
 
+
+// load libs
+
 normalized_require_once("/server/php/inc/util.php");
 normalized_require_once("/server/php/inc/App.php");
 normalized_require_once("/server/php/inc/Item.php");
 
+
+// init
+
 $app = new App(APP_ABS_PATH, APP_ABS_HREF, ABS_HREF);
 
+
+// run
+
 if (array_key_exists("action", $_REQUEST)) {
 
 	header("Content-type: application/json;charset=utf-8");