(PHP 5 >= 5.1.0)
ArrayIterator::rewind — Rewind array back to the start
This rewinds the iterator to the beginning.
This function has no parameters.
无返回值。
Example #1 ArrayIterator::rewind() example
<?php
$arrayobject = new ArrayObject();
$arrayobject[] = 'zero';
$arrayobject[] = 'one';
$arrayobject[] = 'two';
$iterator = $arrayobject->getIterator();
$iterator->next();
echo $iterator->key(); //1
$iterator->rewind(); //rewinding to the begining
echo $iterator->key(); //0
?>