CachingIterator::key

CachingIterator::key

(PHP 5, PHP 7, PHP 8)

CachingIterator::key — Return the key for the current element

Description

public CachingIterator::key(): scalar

Warning This function is currently not documented; only its argument list is available.

This method may return a key for the current element.

Parameters

This function has no parameters.

© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/cachingiterator.key.php