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The SimpleXMLIterator class

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The SimpleXMLIterator provides recursive iteration over all nodes of a SimpleXMLElement object.

The SimpleXMLIterator provides recursive iteration over all nodes of a SimpleXMLElement object.

class SimpleXMLIterator extends SimpleXMLElement { }

Version	Description
8.0.0	Iterator methods (`SimpleXMLIterator::hasChildren`, `SimpleXMLIterator::getChildren`, `SimpleXMLIterator::current`, `SimpleXMLIterator::key`, `SimpleXMLIterator::next`,`SimpleXMLIterator::rewind`, `SimpleXMLIterator::valid`) were moved to `SimpleXMLElement`.
8.0.0	`SimpleXMLIterator` implements `Stringable` now.

Source: reference/simplexml/simplexmliterator.xml · from the official PHP manual (php/doc-en)