PHP
SPL/Iterators

FilterIterator::key

FilterIterator::key

(PHP 5 >= 5.1.0, PHP 7)

FilterIterator::key — Get the current key

Description

public mixed FilterIterator::key ( void )

Warning

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

Get the current key.

Parameters

This function has no parameters.

Return Values

The current key.

See Also

  • FilterIterator::current() - Get the current element value

← FilterIterator::getInnerIterator

FilterIterator::next →

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https://secure.php.net/manual/en/filteriterator.key.php