(PHP 5, PHP 7, PHP 8)
DirectoryIterator::key — Return the key for the current DirectoryIterator item
Get the key for the current DirectoryIterator item.
This function has no parameters.
The key for the current DirectoryIterator item as an int.
| Version | Description |
|---|---|
| 8.1.0 | When the iterator is uninitialized, an Error is thrown now. Previously, the method returned false. |
Example #1 A DirectoryIterator::key() example
<?php
$dir = new DirectoryIterator(dirname(__FILE__));
foreach ($dir as $fileinfo) {
if (!$fileinfo->isDot()) {
echo $fileinfo->key() . " => " . $fileinfo->getFilename() . "\n";
}
}
?>The above example will output something similar to:
0 => apple.jpg 1 => banana.jpg 2 => index.php 3 => pear.jpg