EmptyIterator::key
EmptyIterator::key
(PHP 5 >= 5.1.0, PHP 7)
EmptyIterator::key — The key() method
Description
public scalar EmptyIterator::key ( void )
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.
Errors/Exceptions
Throws an Exception if called.
Return Values
No value is returned.
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/emptyiterator.key.php
