ArrayIterator::valid
(no version information, might be only in CVS)
ArrayIterator::valid --
Check whether array contains more entries
Description
bool
ArrayIterator::valid ( void )
This function checks if the array contains any more entries.
例子 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());
?>
|
|