ArrayIterator::key
Return current array key
Description
public stringintnull ArrayIterator::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
?>