SimpleXMLIterator::key

(PHP 5, PHP 7)

SimpleXMLIterator::key — Return current key

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public SimpleXMLIterator::key ( void ) : mixed

This method gets the XML tag name of the current element.

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Returns the XML tag name of the element referenced by the current SimpleXMLIterator object or FALSE

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Example #1 Get the current XML tag key

<?php
$xmlIterator = new SimpleXMLIterator('<books><book>PHP basics</book><book>XML basics</book></books>');

echo var_dump($xmlIterator->key());
$xmlIterator->rewind(); // rewind to the first element
echo var_dump($xmlIterator->key());

?>

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bool(false)
string(4) "book"