ArrayIterator::key

(PHP 5, PHP 7, PHP 8)

ArrayIterator::keyReturn current array key

Descrizione

public ArrayIterator::key(): string|int|null

This function returns the current array key

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

The current array key.

Esempi

Example #1 ArrayIterator::key() example

<?php
$array
= array('key' => 'value');

$arrayobject = new ArrayObject($array);
$iterator = $arrayobject->getIterator();

echo
$iterator->key(); //key
?>

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