[ticket/13361] Improve the exception listener

PHPBB3-13361

phpBB/phpbb/exception/exception_interface.php

@@ -0,0 +1,29 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\exception;
+
+/**
+ * Interface exception_interface
+ *
+ * Define an exception which support a language var as message.
+ */
+interface exception_interface
+{
+	/**
+	 * Return the arguments associated with the message if it's a language var.
+	 *
+	 * @return array
+	 */
+	public function get_parameters();
+}