Use className method instead of ::class

Author: unclead

examples/views/embedded-input.php

@@ -50,7 +50,7 @@
         ],
         [
             'name' => 'answers',
-            'type'  => MultipleInput::class,
+            'type'  => MultipleInput::className(),
             'options' => [
                 'attributeOptions' => $commonAttributeOptions,
                 'columns' => [

src/MultipleInputColumn.php

@@ -131,7 +131,7 @@ protected function renderWidget($type, $name, $value, $options)
         // Extend options in case of rendering embedded MultipleInput
         // We have to pass to the widget an original model and an attribute to be able get a first error from model
         // for embedded widget.
-        if ($type === MultipleInput::class && strpos($name, $this->renderer->getIndexPlaceholder()) === false) {
+        if ($type === MultipleInput::className() && strpos($name, $this->renderer->getIndexPlaceholder()) === false) {
             $model = $this->context->model;
 
             // in case of embedding level 2 and more