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
