ArrayIterator::key

(PHP 5, PHP 7)

ArrayIterator::keyReturn current array key


Description

public ArrayIterator::key ( ) : mixed

This function returns the current array key


Parameters

This function has no parameters.


Return Values

The current array key.


Examples

Example #1 ArrayIterator::key() example

<?php$array = array('key' => 'value');$arrayobject = new ArrayObject($array);$iterator = $arrayobject->getIterator();echo $iterator->key(); //key?>