DirectoryIterator::key

(PHP 5, PHP 7)

DirectoryIterator::key — Return the key for the current DirectoryIterator item

Descrierea

public DirectoryIterator::key ( void ) : string

Get the key for the current DirectoryIterator item.

Parametri

Această funcție nu are parametri.

Valorile întoarse

The key for the current DirectoryIterator item.

Exemple

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";
    }
}
?>

Exemplul de mai sus va afișa ceva similar cu:

0 => apple.jpg
1 => banana.jpg
2 => index.php
3 => pear.jpg

A se vedea și

DirectoryIterator::current() - Return the current DirectoryIterator item
DirectoryIterator::next() - Move forward to next DirectoryIterator item
DirectoryIterator::rewind() - Rewind the DirectoryIterator back to the start
DirectoryIterator::valid() - Check whether current DirectoryIterator position is a valid file
Iterator::key() - Return the key of the current element