Leverage array_is_list(), get_debug_type(), is_countable(), is_iterable(), str_contains() and str_starts_with()

Author: fancyweb

Form.php

@@ -704,7 +704,7 @@ public function isEmpty(): bool
 
         return FormUtil::isEmpty($this->modelData) ||
             // arrays, countables
-            ((\is_array($this->modelData) || $this->modelData instanceof \Countable) && 0 === \count($this->modelData)) ||
+            (is_countable($this->modelData) && 0 === \count($this->modelData)) ||
             // traversables that are not countable
             ($this->modelData instanceof \Traversable && 0 === iterator_count($this->modelData));
     }