Symfony2 Form Builder - Remove label, make it placeholder

Question

I am playing with Symfony's form builder, and I can't find a way to not display a label. Further, I am interested in actually setting a placeholder for each input box. Is this possible? I have researched a bit and found nothing.

My form:

<form action="{{ path('searchPeople') }}" method="post" class="form-inline">
    {{ form_errors(form) }}
    
    {{ form_row(form.first_name) }}
    {{ form_row(form.last_name) }}
    
    {{ form_rest(form) }}
    
    <br />
    <button type="submit" class="btn btn-primary" /><i class="icon-search"></i>Search</button>
</form>

Answer 1

I know it's already answered, but might help somebody who is looking for a different solution for placeholders, if you don't want to change anything in your twig template:

$builder->add(
    'name',
    'text', 
     array(
        'attr' => array(
             'placeholder' => 'Your name',
        ),
        'label' => false,
     )
);

Answer 2

If you're outputting the field with form_rest you'll have to set the label for the the field to false in the form builder with something like

$builder->add('first_name', 'text', array(
    'label' => false,
));

If you output the fields individually, you can omit the form_label for that field in the twig template, or set it to an empty string.

{{ form_label(form.first_name, '') }}

Answer 3

Convert label to placeholder

{% use 'form_div_layout.html.twig' with widget_attributes as base_widget_attributes %}
{% block widget_attributes %}
    {% set attr = {'placeholder': label|trans({}, translation_domain)} %}
    {{- block('base_widget_attributes') -}}
{% endblock widget_attributes %}