iterator_count

(PHP 5 >= 5.1.3)

iterator_count — Count the elements in an iterator

Description

int iterator_count ( Traversable $iterator )

Warning

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

Count the elements in an iterator.

Parameters

iterator: The iterator being counted.

Return Values

The number of elements in iterator .

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iterator_count

Micha Mech
09-May-2008 05:38


Yes, but ...



Traversable: "Abstract base interface that cannot be implemented alone. Instead it must be implemented by either IteratorAggregate or Iterator."



So You have to implement IteratorAggregate or Iterator because You can not implement Traversable.

Ard
31-Aug-2006 05:39


Note that you that the iterator parameter doesn't need to be of type Aggregate. As the spl documentation on http://www.php.net/~helly/php/ext/spl/ defines it in the following way:



    iterator_count (Traversable $it).



So you can count the number of files in a given directory quite easily:

<?php iterator_count(new DirectoryIterator('path/to/dir/'));    ?>

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Last updated: Fri, 02 Jan 2009