spl
PHP Manual

ArrayIterator::valid

(PHP 5)

ArrayIterator::valid — Check whether array contains more entries

Description

bool ArrayIterator::valid ( void )

This function checks if the array contains any more entries.

Example#1 ArrayIterator::valid() example

<?php
$array 
= array('1' => 'one');

$arrayobject = new ArrayObject($array);
$iterator $arrayobject->getIterator();

var_dump($iterator->valid()); //bool(true)

$iterator->next(); // advance to the next item

//bool(false) because there is only one array element
var_dump($iterator->valid());
?>


spl
PHP Manual