Php/docs/emptyiterator.key
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EmptyIterator::key
(PHP 5 >= 5.1.0, PHP 7)
EmptyIterator::key — The key() method
Description
public EmptyIterator::key ( ) : scalar
This function must not be called. It throws an exception upon access.
Warning This function is currently not documented; only its argument list is available.
Parameters
This function has no parameters.
Return Values
No value is returned.