SimpleXMLIterator::valid

Check whether the current element is valid

Beschreibung

public 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
?>