- Проверяем вывод формы

common/modules/users/widgets/RegistrationWidget.php

@@ -20,6 +20,7 @@ class RegistrationWidget extends Widget
 	 */
 	public function run()
 	{
-        return \Yii::$app->controller->renderPartial('@common/modules/users/widgets/views/RegistrationWidget');
+        $model = new User();
+        return \Yii::$app->controller->renderPartial('@common/modules/users/widgets/views/RegistrationWidget', ['model' => $model]);
 	}
 }
\ No newline at end of file

common/modules/users/widgets/views/RegistrationWidget.php

@@ -10,17 +10,17 @@ use yii\helpers\Html;
         <div class="errors-reg_popup"></div>
         <?php
 
-        echo $f->field($formModel, 'name')->textInput(['placeholder'=>"Ваше имя*", 'class'=>'input_st field-input required alphanumeric'])->label(false);
+        echo $form->field($model, 'name')->textInput(['placeholder'=>"Ваше имя*", 'class'=>'input_st field-input required alphanumeric'])->label(false);
 
-        echo $f->field($formModel, 'email')->textInput(['placeholder'=>"E-mail*", 'class'=>'input_st field-input required email'])->label(false);
+        echo $form->field($model, 'email')->textInput(['placeholder'=>"E-mail*", 'class'=>'input_st field-input required email'])->label(false);
 
-        echo $f->field($formModel, 'password')->passwordInput(['placeholder'=>"Придумайте пароль*", 'class'=>'input_st field-input required email'])->label(false);
+        echo $form->field($model, 'password')->passwordInput(['placeholder'=>"Придумайте пароль*", 'class'=>'input_st field-input required email'])->label(false);
 
-        echo $f->field($formModel, 'password_c')->passwordInput(['placeholder'=>"Повторите пароль*", 'class'=>'input_st field-input required email'])->label(false);
+        echo $form->field($model, 'password_c')->passwordInput(['placeholder'=>"Повторите пароль*", 'class'=>'input_st field-input required email'])->label(false);
 
-        echo $f->field($formModel, 'phone')->textInput(['placeholder'=>"Телефон", 'class'=>'input_st field-input required email'])->label(false);
+        echo $form->field($model, 'phone')->textInput(['placeholder'=>"Телефон", 'class'=>'input_st field-input required email'])->label(false);
 
-        echo $f->field($formModel, 'occupation')->dropDownList(User::$occupation_list, ['placeholder'=>"Чем вы занимаетесь", 'class'=>'input_st field-input required email', 'prompt' => 'Чем вы занимаетесь'])->label(false);
+        echo $form->field($model, 'occupation')->dropDownList(User::$occupation_list, ['placeholder'=>"Чем вы занимаетесь", 'class'=>'input_st field-input required email', 'prompt' => 'Чем вы занимаетесь'])->label(false);
 
         echo Html::a(Html::tag('div', 'Начать обучение', ['class' => 'save-button popup_bt_send save-button-lg']), 'javascript:void(0)', ['class'=>"save-button popup_bt_send save-button-lg"]);
         ?>