diff --git a/qrcode/helpers/helpers.php b/qrcode/helpers/helpers.php
index e232703..82a53a6 100644
--- a/qrcode/helpers/helpers.php
+++ b/qrcode/helpers/helpers.php
@@ -116,3 +116,12 @@ function paginationLinks($current_page, $total_pages, $base_url) {
 
 	return $html;
 }
+
+function base_url(){
+    return sprintf(
+        "%s://%s:%s",
+        isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' ? 'https' : 'http',
+        $_SERVER['SERVER_NAME'],
+        $_SERVER['SERVER_PORT']
+    );
+}