RecursiveTreeIterator::key
(PHP 5 >= 5.3.0, PHP 7)
RecursiveTreeIterator::key — Get the key of the current element
Description
public RecursiveTreeIterator::key ( ) : string
Gets the current key prefixed and postfixed.
Warning
This function is currently not documented; only its argument list is available.
Parameters
This function has no parameters.
Return Values
Returns the current key prefixed and postfixed.
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https://www.php.net/manual/en/recursivetreeiterator.key.php