Yii2. How to dynamically add a field to a form?

Question

Yii

There is a form
How to make that by clicking on the Add phone button, a duplicate of the phone field is dynamically added

<?php $form = ActiveForm::begin(['id' => 'form-signup', 'options' => ['enctype' => 'multipart/form-data']]);?>
    <?= $form->field($model, 'username') ?>
    <?= $form->field($model, 'email') ?>
    <?= $form->field($model, 'phone') ?>
    <?= Html::buttonInput('+Добавить телефон')?>
    ...
<?php ActiveForm::end(); ?>

Answer 1

well, at least you will need to do it on the front with javascript, and after submitting, validate and process the array of additional fields yourself, I don’t think that there are built-in (out of the box) solutions for this, although it’s worth running around and looking from third-party libraries, the same Kartik is not bad works in this direction, you may be able to apply one of the available similar solutions
demos.krajee.com/builder-details/tabular-form