array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'en', ), 'this' => array ( 0 => 'filesystemiterator.key.php', 1 => 'FilesystemIterator::key', ), 'up' => array ( 0 => 'class.filesystemiterator.php', 1 => 'FilesystemIterator', ), 'prev' => array ( 0 => 'filesystemiterator.getflags.php', 1 => 'FilesystemIterator::getFlags', ), 'next' => array ( 0 => 'filesystemiterator.next.php', 1 => 'FilesystemIterator::next', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/spl/filesystemiterator/key.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
FilesystemIterator::key — Retrieve the key for the current file
This function has no parameters.
Returns the pathname or filename depending on the set flags. See the FilesystemIterator constants.
Example #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";
}
?>
Output of the above example in PHP 8.2 is similar to:
. .. apple.jpg banana.jpg example.php