From b79cf81179b594491075187803443f7f343844d4 Mon Sep 17 00:00:00 2001
From: Robert Kaiser <kairo@kairo.at>
Date: Sat, 13 Apr 2024 01:33:47 +0200
Subject: [PATCH] make sure that values like '0' are valid in select options

---
 classes/document.php-class | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/classes/document.php-class b/classes/document.php-class
index ebde6ec..c2f0fcf 100755
--- a/classes/document.php-class
+++ b/classes/document.php-class
@@ -687,10 +687,12 @@ class ExtendedDocument extends DOMDocument {
 
   public function createElementOption($key, $desc, $selected = false) {
     $option = $this->createElement('option', $desc);
-    if ($key) {
+    if (is_numeric($key) || is_string($key)) {
       $option->setAttribute('value', $key);
     }
-    if ($selected) { $option->setAttribute('selected', ''); }
+    if ($selected) {
+      $option->setAttribute('selected', '');
+    }
     return $option;
   }
 
-- 
2.35.3