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RecursiveCallbackFilterIterator	RecursiveCallbackFilterIterator::getChildren

RecursiveCallbackFilterIterator	Last updated: Mon, 26 Oct 2026

RecursiveCallbackFilterIterator::__construct

(PHP 5 >= 5.4.0, PHP 7, PHP 8)

RecursiveCallbackFilterIterator::__construct — Create a RecursiveCallbackFilterIterator from a RecursiveIterator

Description

public function RecursiveCallbackFilterIterator::__construct(RecursiveIterator $iterator, callable $callback)

Creates a filtered iterator from a RecursiveIterator using the callback to determine which items are accepted or rejected.

Parameters

iterator

The recursive iterator to be filtered.

callback

The callback, which should return true to accept the current item or false otherwise. See Examples.

May be any valid callable value.

See Also

RecursiveCallbackFilterIterator Examples
RecursiveCallbackFilterIterator::getChildren() - Return the inner iterator's children contained in a RecursiveCallbackFilterIterator
RecursiveCallbackFilterIterator::hasChildren() - Check whether the inner iterator's current element has children

RecursiveCallbackFilterIterator	RecursiveCallbackFilterIterator::getChildren

RecursiveCallbackFilterIterator	Last updated: Mon, 26 Oct 2026