Qual: Fix or ignore functions.lib.php phan notices (#29344)

* Fix: LogHandler parent class, implements interface & provides $code

* Fix: functions.lib phan notices

* Fix phan notifications

* Match expected DebugBar signature - rename getRenderer

* Call the correct renderer method for the DebugBar

* Use correct key type to access array

* Ignore notices

* Update functions.lib.php

---------

Co-authored-by: Laurent Destailleur <eldy@destailleur.fr>

htdocs/core/modules/syslog/logHandlerInterface.php

@@ -1,5 +1,6 @@
 <?php
 /* Copyright (C) 2024       Frédéric France             <frederic.france@free.fr>
+ * Copyright (C) 2024		MDW							<mdeweerd@users.noreply.github.com>
  */
 /*
  * This program is free software; you can redistribute it and/or modify
@@ -79,10 +80,11 @@ interface LogHandlerInterface
 	public function isActive();
 
 	/**
-	 * 	Output log content
+	 * Export the message
 	 *
-	 *	@param	array	$content	Content to log
-	 * 	@return	void
+	 * @param   array   $content            Array containing the info about the message
+	 * @param   string  $suffixinfilename   When output is a file, append this suffix into default log filename.
+	 * @return  void
 	 */
-	public function export($content);
+	public function export($content, $suffixinfilename = '');
 }