PHP Dokumentation: Simplexmliterator valid
12. Januar 2010 von werner
SimpleXMLIterator::valid
(PHP 5 >= 5.1.0)
SimpleXMLIterator::valid — Check whether the current element is valid
Beschreibung
bool SimpleXMLIterator::valid ( void )
This method checks if the current element is valid after calls to SimpleXMLIterator::rewind or SimpleXMLIterator::next.
Parameter-Liste
Diese Funktion hat keine Parameter.
Rückgabewerte
Returns TRUE if the current element is valid, otherwise FALSE
Beispiele
Beispiel #1 Check whether the current element is valid
<?php
$xmlIterator = new SimpleXMLIterator('<books><book>SQL Basics</book></books>');$xmlIterator->rewind(); // rewind to the first element
echo var_dump($xmlIterator->valid()); // bool(true)$xmlIterator->next(); // advance to the next element
echo var_dump($xmlIterator->valid()); // bool(false) because there is only one element
?>
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