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(PHP 5, PHP 7, PHP 8)
DirectoryIterator::key — Return the key for the current DirectoryIterator item
Get the key for the current DirectoryIterator item.
Diese Funktion besitzt keine Parameter.
The key for the current DirectoryIterator item as an int.
| Version | Beschreibung |
|---|---|
| 8.1.0 |
When the iterator is uninitialized, an Error is
thrown now. Previously, the method returned false.
|
Beispiel #1 A DirectoryIterator::key() example
<?php
$dir = new DirectoryIterator(dirname(__FILE__));
foreach ($dir as $fileinfo) {
if (!$fileinfo->isDot()) {
echo $fileinfo->key() . " => " . $fileinfo->getFilename() . "\n";
}
}
?>Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:
0 => apple.jpg 1 => banana.jpg 2 => index.php 3 => pear.jpg
