How to add placeholder on input in Symfony 4 form?

Question

In my Symfony 4 form, I am try to get a placeholder for my input. I tried the below but I get an error that it is not allowed. Any ideas how else I can achieve this?

 ->add('firstname', TextType::class, ['label' => 'Vorname ', 'placeholder' => 'Your name',])

As suggested in the documentation I have also tried the below, here I am not getting an error, just nothing is rendering.

 ->add('firstname', TextType::class, ['label' => 'Vorname '], ['attr' => ['placeholder' => 'Vorname ']])

Answer 1

In my Symfony 4 form, I am try to get a placeholder for my input. I tried the below but I get an error that it is not allowed. Any ideas how else I can achieve this?

 ->add('firstname', TextType::class, ['label' => 'Vorname ', 'placeholder' => 'Your name',])

As suggested in the documentation I have also tried the below, here I am not getting an error, just nothing is rendering.

 ->add('firstname', TextType::class, ['label' => 'Vorname '], ['attr' => ['placeholder' => 'Vorname ']])

Answer 2

In my Symfony 4 form, I am try to get a placeholder for my input. I tried the below but I get an error that it is not allowed. Any ideas how else I can achieve this?

 ->add('firstname', TextType::class, ['label' => 'Vorname ', 'placeholder' => 'Your name',])

As suggested in the documentation I have also tried the below, here I am not getting an error, just nothing is rendering.

 ->add('firstname', TextType::class, ['label' => 'Vorname '], ['attr' => ['placeholder' => 'Vorname ']])

Answer 3

The 'placeholder' option don't exists in TextType. If you wan to fill the field. You have to fill the entity you pass to build the form.

$entity = new MyEntity();
$entity->setFirstName('Your name');
$form = $this->createForm(MyEntityType::class, $entity);

Answer 4

In my Symfony 4 form, I am try to get a placeholder for my input. I tried the below but I get an error that it is not allowed. Any ideas how else I can achieve this?

 ->add('firstname', TextType::class, ['label' => 'Vorname ', 'placeholder' => 'Your name',])

As suggested in the documentation I have also tried the below, here I am not getting an error, just nothing is rendering.

 ->add('firstname', TextType::class, ['label' => 'Vorname '], ['attr' => ['placeholder' => 'Vorname ']])

Answer 5

The documentation of Symfony 6 suggests two ways.

The first option is inside the yourForm.php :

->add('name', TextType::class,
    [
        'label'    => 'Name *',
        'attr' => ['placeholder' => 'Name *'],
        'required' => true
    ])

The second option is inside the twig template :

{{ form_label(form.name) }}
{{ form_widget(form.name, {'attr': {'placeholder': 'Name*' }}) }}

You can find more information in the official documentation ofSymfony 6 FormType