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EmptyIterator::key

(PHP 5 >= 5.1.0, PHP 7)

The key() method

public scalar EmptyIterator::key ( void )

This function must not be called. It throws an exception upon access.

Returns:

No value is returned.

This function is currently not documented; only its argument list is available.

Exception:

Throws an Exception if called.

Links:

http://php.net/manual/en/emptyiterator.key.php

doc_php

2016-02-24 16:19:51

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