MDL-74358 availability: Avoid php8 problem with array_values(null)

moodle · Jun 17, 2022 · 78cbd77 · 78cbd77
1 parent 8303206
commit 78cbd77
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/availability/classes/tree.php b/availability/classes/tree.php
@@ -684,7 +684,7 @@ public function update_after_restore($restoreid, $courseid,
             } else {
                 unset($this->children[$index]);
                 unset($this->showchildren[$index]);
-                $this->showchildren = array_values($this->showchildren);
+                $this->showchildren = !is_null($this->showchildren) ? array_values($this->showchildren) : null;
                 $changed = true;
             }
         }