offsetExists($key) {@inheritdoc} Parameters

class SubmitType extends AbstractType implements

buildForm(FormBuilderInterface $builder,

FormInterface submit(null|string|array $submittedData

finishView(FormView $view,

class FormBuilder extends FormConfigBuilder

mapFormsToData(FormInterface[] $forms, mixed $data)

array getValuesForChoices(array $choices) Returns the values corresponding to the given choices

FormFactoryBuilderInterface

configureOptions(OptionsResolver