iterator_count

(PHP 5 >= 5.1.0)

iterator_count — Count the elements in an iterator

Beschreibung

int iterator_count ( Traversable $iterator )

Count the elements in an iterator.

Parameter-Liste

iterator: The iterator being counted.

Rückgabewerte

The number of elements in iterator.

Beispiele

Beispiel #1 iterator_count() example


<?php
$iterator = new ArrayIterator(array('recipe'=>'pancakes', 'egg', 'milk', 'flour'));
var_dump(iterator_count($iterator));
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

int(4)

add a note User Contributed Notes
iterator_count

Ard
31-Aug-2006 12:39


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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iterator_to_array

iterator_apply

Last updated: Fri, 18 May 2012