offsetUnset(string $name) Removes a child (implements \ArrayAccess). Parameters string $name The child name

offsetSet($name, $value) Implements \ArrayAccess. Parameters $name $value Exceptions BadMethodCallException always as setting a child by name is not allowed

FormView offsetGet(string $name) Returns a child by name (implements \ArrayAccess). Parameters string $name The child name Return Value FormView The child view

bool offsetExists(string $name) Returns whether the given child exists (implements \ArrayAccess). Parameters string $name The child name Return Value bool Whether the child view exists

bool isRendered() Returns whether the view was already rendered. Return Value bool Whether this view's widget is rendered

ArrayIterator|FormView[] getIterator() Returns an iterator to iterate over children (implements \IteratorAggregate). Return Value ArrayIterator|FormView[] The iterator

int count() Implements \Countable. Return Value int The number of children views

class FormView implements ArrayAccess, IteratorAggregate, Countable Properties array $vars The variables assigned to this view. FormView $parent The parent view. FormView[] $children The child views. Methods __construct(FormView $parent = null) bool isRendered() Returns whether the view was already rendered. FormView setRendered() Marks the view as rendered. FormView offsetGet(string $name) Returns a child by name (implements \ArrayAccess). bool offsetExists

class FormValidator extends ConstraintValidator Constants PRETTY_DATE Whether to format {@link \DateTime} objects as RFC-3339 dates ("Y-m-d H:i:s"). OBJECT_TO_STRING Whether to cast objects with a "__toString()" method to strings. Methods initialize(ExecutionContextInterface $context) Initializes the constraint validator. from ConstraintValidator validate($form, Constraint $constraint) Checks if the passed value is valid. Details initialize(Exec

class FormUtil Methods static bool isEmpty(mixed $data) Returns whether the given data is empty. Details static bool isEmpty(mixed $data) Returns whether the given data is empty. This logic is reused multiple times throughout the processing of a form and needs to be consistent. PHP's keyword empty cannot be used as it also considers 0 and "0" to be empty. Parameters mixed $data Return Value bool