Symfony formbuilder格式设置复选框

$builder->add('fieldname', CheckboxType::class, [
    'label' => 'Checkbox Label',
]);

$builder->add('fieldname', CheckboxType::class, [
    'data' => true,
]);

$builder->add('fieldname', CheckboxType::class, [
    'attr' => [
        'class' => 'custom-class',
        'data-attribute' => 'value',
    ],
]);

$builder->add('fieldname', ChoiceType::class, [
    'expanded' => true,     // 将复选框渲染成单独的复选框元素
    'multiple' => true,     // 允许选择多个选项
    'choices' => [
        'Option 1' => 'value1',
        'Option 2' => 'value2',
    ],
]);