在线文档教程
PHP
SPL/Iterators

FilesystemIterator::key

FilesystemIterator::key

(PHP 5 >= 5.3.0, PHP 7)

FilesystemIterator::key — Retrieve the key for the current file

Description

public string FilesystemIterator::key ( void )

Parameters

This function has no parameters.

Return Values

Returns the pathname or filename depending on the set flags. See the FilesystemIterator constants.

Examples

Example #1 FilesystemIterator::key() example

This example will list the contents of the directory containing the script.

<?php $iterator = new FilesystemIterator(dirname(__FILE__), FilesystemIterator::KEY_AS_FILENAME foreach ($iterator as $fileinfo) {     echo $iterator->key() . "\n"; } ?>

The above example will output something similar to:

apple.jpg banana.jpg example.php

See Also

  • FilesystemIterator constants

  • DirectoryIterator::key() - Return the key for the current DirectoryIterator item

  • DirectoryIterator::getFilename() - Return file name of current DirectoryIterator item.

  • DirectoryIterator::getPathname() - Return path and file name of current DirectoryIterator item

← FilesystemIterator::getFlags

FilesystemIterator::next →

© 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

https://secure.php.net/manual/en/filesystemiterator.key.php