(PHP 5, PHP 7)
RecursiveIteratorIterator::key — Access the current key
public RecursiveIteratorIterator::key ( ) : mixed
This function is currently not documented; only its argument list is available.
This function has no parameters.
The current key.
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/recursiveiteratoriterator.key.php