Php/docs/directoryiterator.rewind

• PHP Manual
• DirectoryIterator
• Rewind the DirectoryIterator back to the start

DirectoryIterator::rewind

(PHP 5, PHP 7)

DirectoryIterator::rewind — Rewind the DirectoryIterator back to the start

说明

public DirectoryIterator::rewind ( ) : void

Rewind the DirectoryIterator back to the start.

参数

此函数没有参数。

返回值

没有返回值。

范例

Example #1 DirectoryIterator::rewind() example

<?php$iterator = new DirectoryIterator(dirname(__FILE__));$iterator->next();echo $iterator->key(); //1$iterator->rewind(); //rewinding to the beginningecho $iterator->key(); //0?>

参见

• DirectoryIterator::current() - Return the current DirectoryIterator item
• DirectoryIterator::key() - Return the key for the current DirectoryIterator item
• DirectoryIterator::next() - Move forward to next DirectoryIterator item
• DirectoryIterator::valid() - Check whether current DirectoryIterator position is a valid file
• Iterator::rewind() - 返回到迭代器的第一个元素