From 7c64360ed35e511099b8204332c5b713d60591e9 Mon Sep 17 00:00:00 2001
From: Barny-Thorpe <47748897+Barny-Thorpe@users.noreply.github.com>
Date: Fri, 31 Mar 2023 11:22:33 +0100
Subject: [PATCH] empty array if null

---
 src/Taxonomy.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Taxonomy.php b/src/Taxonomy.php
index 483340c..a820304 100644
--- a/src/Taxonomy.php
+++ b/src/Taxonomy.php
@@ -358,7 +358,7 @@ public function setSortableColumns($columns)
     public function sortSortableColumns($query)
     {
         // don't modify the query if we're not in the post type admin
-        if (!is_admin() || !in_array($this->name, $query->query_vars['taxonomy'])) {
+        if (!is_admin() || !in_array($this->name, $query->query_vars['taxonomy'] ?? [])) {
             return;
         }