Input DateTimePicker return null

问题

I have this form builder

$builder
            ->add('debutRdv', DateTimeType::class,[
                'data' => new\DateTime(),
                'widget' => 'single_text',
                'html5' => false])

And this is Twig

        <div class="input-group date" id="entretien_debutRdv" data-target-input="nearest">

            {{ form_widget(form3.debutRdv, {'attr': {'class': 'js-datepicker datetimepicker-input',
                'data-target': '#entretien_debutRdv'}}) }}

            <div class="input-group-append" data-target="#entretien_debutRdv" data-toggle="datetimepicker">
                <div class="input-group-text"><i class="fas fa-calendar-alt"></i></div>
            </div>
        </div>

And this is Javascript :

    $(function () {
        $('.js-datepicker').datetimepicker({
            fontAwesome:'font-awesome',

        });
    });

My probleme is, when i want to get data of input in controller, i get null

来源：https://stackoverflow.com/questions/55339171/input-datetimepicker-return-null