--- /dev/null
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+// @codingStandardsIgnoreFile
+
+/**
+ * @param string $text1
+ * @param string $text2
+ * @param int $numContextLines
+ * @param int $movedParagraphDetectionCutoff
+ * @return string
+ */
+function wikidiff2_do_diff( $text1, $text2, $numContextLines, $movedParagraphDetectionCutoff = 0 ) {
+}