class DateTimeToArrayTransformer extends

string getBlockPrefix() Returns the prefix of the template block name for this type. The

mixed transform(DateTimeInterface $dateTime)

configureOptions(OptionsResolver

string|null getParent() Returns the name of the parent type.

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

string getBlockPrefix() Returns the prefix of the template block name for this type. The

class CoreExtension extends AbstractExtension

configureOptions(OptionsResolver