DirectoryIterator::seek()
(PHP 5>=5.3.0,PHP 7)
Seek to a DirectoryIterator item
说明
public DirectoryIterator::seek(int $position) : void
Seek to a given position in theDirectoryIterator.
参数
- $position
The zero-based numeric position to seek to.
返回值
没有返回值。
范例
Example#1DirectoryIterator::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