-require_once("include/datetime.php");
-require_once('include/bbcode.php');
-require_once('include/ForumManager.php');
-require_once('include/group.php');
-require_once('mod/proxy.php');
-require_once('include/xml.php');
-require_once('include/cache.php');
+/**
+ * @file include/ping.php
+ */
+
+use Friendica\App;
+use Friendica\Content\Feature;
+use Friendica\Content\ForumManager;
+use Friendica\Content\Text\BBCode;
+use Friendica\Core\Addon;
+use Friendica\Core\Cache;
+use Friendica\Core\Config;
+use Friendica\Core\L10n;
+use Friendica\Core\PConfig;
+use Friendica\Core\System;
+use Friendica\Database\DBA;
+use Friendica\Model\Contact;
+use Friendica\Model\Group;
+use Friendica\Model\Item;
+use Friendica\Util\DateTimeFormat;
+use Friendica\Util\Temporal;
+use Friendica\Util\Proxy as ProxyUtils;
+use Friendica\Util\XML;
+
+require_once 'include/enotify.php';