[ticket/12683] Add basic tests

PHPBB3-12683

phpBB/phpbb/posting/post_helper.php

@@ -0,0 +1,43 @@
+<?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\posting;
+
+use phpbb\db\driver\driver_interface;
+
+class post_helper
+{
+	/**
+	 * @var driver_interface
+	 */
+	protected $db;
+
+	public function __construct(driver_interface $db)
+	{
+		$this->db = $db;
+	}
+
+	/**
+	 * Get last post id
+	 */
+	public function get_max_post_id(): int
+	{
+		$sql = 'SELECT MAX(post_id) as max_post_id
+			FROM '. POSTS_TABLE;
+		$result = $this->db->sql_query($sql);
+		$max_post_id = (int) $this->db->sql_fetchfield('max_post_id');
+		$this->db->sql_freeresult($result);
+
+		return $max_post_id;
+	}
+}