fix datatype

diff --git a/include/admin/category.inc.php b/include/admin/category.inc.php
index 54f5671d827457da5a70228f1d0e64f8e9a3a1f2..e49bf8236baa4ff3d36f6919fbc9729a6662cf75 100644 (file)
--- a/include/admin/category.inc.php
+++ b/include/admin/category.inc.php
@@ -17,7 +17,7 @@ if (isset($_POST['SAVE'])) {
     $name     = $serendipity['POST']['cat']['name'];
     $desc     = $serendipity['POST']['cat']['description'];
 
-    if (in_array(0, $serendipity['POST']['cat']['write_authors'])) {
+    if (is_array($serendipity['POST']['cat']['write_authors']) && in_array(0, $serendipity['POST']['cat']['write_authors'])) {
         $authorid = 0;
     } else {
         $authorid = $serendipity['authorid'];