SplObjectStorage::rewind
(PHP 5 >= 5.1.0, PHP 7)
SplObjectStorage::rewind — Rewind the iterator to the first storage element
说明
public SplObjectStorage::rewind
( void
) : void
Rewind the iterator to the first storage element.
参数
此函数没有参数。
返回值
没有返回值。
范例
Example #1 SplObjectStorage::rewind() example
<?php
$s = new SplObjectStorage();
$o1 = new StdClass;
$o2 = new StdClass;
$s->attach($o1, "d1");
$s->attach($o2, "d2");
$s->rewind();
while($s->valid()) {
$index = $s->key();
$object = $s->current(); // similar to current($s)
$data = $s->getInfo();
var_dump($object);
var_dump($data);
$s->next();
}
?>
以上例程的输出类似于：
int(1) int(0)