DirectoryIterator::seek

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

DirectoryIterator::seek — Seek to a DirectoryIterator item

说明

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

Seek to a given position in the DirectoryIterator.

参数

offset: The zero-based numeric position to seek to.

返回值

没有返回值。

范例

示例 #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

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