diff --git a/app/helpers.php b/app/helpers.php
index 1901e07..70c1948 100644
--- a/app/helpers.php
+++ b/app/helpers.php
@@ -143,3 +143,10 @@ function formatTitle(string $str): string
             ->toString();
     }
 }
+
+if (! function_exists('tokenizeString')) {
+    function tokenizeString(string $str): array
+    {
+        return preg_split('/\W+/', trim($str), -1, PREG_SPLIT_NO_EMPTY);
+    }
+}