FilesystemIterator::key
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
FilesystemIterator::key — Retrieve the key for the current file
說明
public FilesystemIterator::key(): string
參數
此函式沒有參數。
返回值
Returns the pathname or filename depending on the set flags. See the FilesystemIterator constants.
範例
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";
}
?>
以上例程的輸出類似於：
apple.jpg banana.jpg example.php
參見
- 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