Php/docs/directoryiterator.seek

• PHP Manual
• DirectoryIterator
• Seek to a DirectoryIterator item

DirectoryIterator::seek

(PHP 5 >= 5.3.0, PHP 7)

DirectoryIterator::seek — Seek to a DirectoryIterator item

说明

public DirectoryIterator::seek ( int $position ) : void

Seek to a given position in the DirectoryIterator.

参数

position

The zero-based numeric position to seek to.

返回值

没有返回值。

范例

Example #1 DirectoryIterator::seek() example

Seek to the fourth item in the directory containing the script. The first two are usually . and ..

<?php$iterator = new DirectoryIterator(dirname(__FILE__));$iterator->seek(3);if ($iterator->valid()) {    echo $iterator->getFilename();} else {    echo 'No file at position 3';}?>

参见

• DirectoryIterator::rewind() - Rewind the DirectoryIterator back to the start
• DirectoryIterator::next() - Move forward to next DirectoryIterator item
• SeekableIterator::seek() - Seeks to a position