How to upload MultipleInput files in Yii2?

Question

Yii

How to upload files in the unclead\multipleinput\MultipleInput extension, just to send files to the controller. Now only file names are sent.
Here is the code in form.php:

<?= $form->field($model, 'plan')->widget(\unclead\multipleinput\MultipleInput::className(), [
                //'max' => 4,
                'columns' => [
                    [
                        'name'  => 'planImage',
                        'title' => 'Картинка плана этажа',
                        'type'  => 'fileInput',
                        
                    ],
                    [
                        'name'  => 'planRange',
                        'title' => 'Диапозон этажей',
                        
                        'enableError' => true,
                        'options' => [
                            'class' => 'input-priority'
                        ]
                    ]
                ]
            ]);
        ?>

Answer 1

Open the html of the page and make sure you have a multipart/form-data form
or developer console and see what type of form is submitted