1 files changed, 25 insertions, 0 deletions
diff --git a/php/path-clean.php b/php/path-clean.php
new file mode 100644
index 0000000..d7b5fbf
--- /dev/null
+++ b/php/path-clean.php
@@ -0,0 +1,25 @@
+<?php
+/*
+ *  GNUfault.org - GNUfault's website
+ *  Copyright (C) 2026  Connor Thomson
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+function path_clean($path) {
+    $pattern = '/(\.\.\/)+/';
+    return preg_replace($pattern, '', $path);
+}
+
+?>