DirectoryIterator::key

(PHP 5, PHP 7)

DirectoryIterator::keyReturn the key for the current DirectoryIterator item

설명

public string DirectoryIterator::key ( void )

Get the key for the current DirectoryIterator item.

인수

이 함수는 인수가 없습니다.

반환값

The key for the current DirectoryIterator item.

예제

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";
    }
}
?>

위 예제의 출력 예시:

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

참고

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