带有Bootstrap的Symfony -单选样式按钮切换

use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
// ...

class YourFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('yourField', ChoiceType::class, [
                'choices' => [
                    'Option 1' => 'option1',
                    'Option 2' => 'option2',
                    'Option 3' => 'option3',
                ],
                'expanded' => true, // 将单选按钮显示为按钮样式
                'multiple' => false, // 只能选择一个选项
                'label_attr' => ['class' => 'btn btn-secondary'], // 添加Bootstrap样式类
            ]);
    }
}

{{ form_start(form) }}
{{ form_widget(form.yourField) }}
{{ form_end(form) }}