bool migrate(bool $destroy = false, int $lifetime = null) Migrates the current session to a new

preBind(FormEvent $event)

class ConcurrentModificationException extends

Form form(array $values = null, string $method = null)

class DataUriNormalizer implements

setOptions(array $options) Sets options. Available options: cache_dir: The cache

Flo

ParsedExpression|null

mixed getNormData() Returns the normalized data of the field.

children() Returns a builder to add children nodes.