FilesystemIterator::key

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

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

说明

public FilesystemIterator::key(): string

参数

此函数没有参数。

返回值

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

示例

示例 #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";
}
?>

上述示例在 PHP 8.2 中的输出类似于：

.
..
apple.jpg
banana.jpg
example.php

参见