int key() Returns the current position of the iterator. Return Value int The 0-indexed position

FormError|FormErrorIterator current() Returns the current element of the iterator. Return Value FormError|FormErrorIterator An error or an iterator containing nested errors.

FormInterface getForm() Returns the iterated form. Return Value FormInterface The form whose errors are iterated by this object

next() Advances the iterator to the next position.

bool offsetExists(int $position) Returns whether a position exists in the iterator. Parameters int $position The position Return Value bool Whether that position exists

bool hasChildren() Returns whether the current element of the iterator can be recursed into. Return Value bool Whether the current element is an instance of this class

getChildren() Alias of {@link current()}.

class FormErrorIterator implements RecursiveIterator, SeekableIterator, ArrayAccess, Countable Iterates over the errors of a form. Optionally, this class supports recursive iteration. In order to iterate recursively, set the constructor argument $deep to true. Now each element returned by the iterator is either an instance of {@link FormError} or of {@link FormErrorIterator}, in case the errors belong to a sub-form. You can also wrap the iterator into a {@link \RecursiveIteratorIterator} to

int count() Returns the number of elements in the iterator. Note that this is not the total number of errors, if the constructor parameter $deep was set to true! In that case, you should wrap the iterator into a {@link \RecursiveIteratorIterator} with the standard mode {@link \RecursiveIteratorIterator::LEAVES_ONLY} and count the result. $iterator = new \RecursiveIteratorIterator($form->getErrors(true)); $count = count(iterator_to_array($iterator)); Alternatively, set the con

unserialize(string $serialized) Unserializes a serialized error. Parameters string $serialized The serialized error