IteratorIterator::key
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
IteratorIterator::key — Get the key of the current element
Description
public IteratorIterator::key(): mixed
Get the key of the current element.
Parameters
This function has no parameters.
Return Values
The key of the current element.
See Also
- IteratorIterator::current() - Get the current value
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/iteratoriterator.key.php
