- * @param $dir string Path to directory to search
- * @param $exts Array of extensions to search for
- * @param $recurse Bool Search subdirectories recursively
- * @return mixed Array of filenames on success, or false on failure
+ * @param string $dir Path to directory to search
+ * @param array $exts Array of extensions to search for
+ * @param bool $recurse Search subdirectories recursively
+ * @return array|bool Array of filenames on success, or false on failure