iterator_count

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    iterator_count — Count the elements in an iterator

    Açıklama

    iterator_count(Traversable|array$iterator): int

    Count the elements in an iterator. iterator_count() is not guaranteed to retain the current position of the iterator.

    Bağımsız Değişkenler

    iterator

    The iterator being counted.

    Dönen Değerler

    The number of elements in iterator.

    Sürüm Bilgisi

    Sürüm: Açıklama
    8.2.0 The type of iterator has been widened from Traversable to Traversable|array.

    Örnekler

    Örnek 1 iterator_count() example

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

    Yukarıdaki örneğin çıktısı:

    int(4)

    Örnek 2 iterator_count() modifies position

    <?php
    $iterator     = new ArrayIterator(['one', 'two', 'three']);
    var_dump($iterator->current());
    var_dump(iterator_count($iterator));
    var_dump($iterator->current());
    ?>

    Yukarıdaki örneğin çıktısı:

    string(3) "one" int(3) NULL

    Örnek 3 iterator_count() in foreach loops

    <?php
    $iterator     = new ArrayIterator(['one', 'two', 'three']);
    foreach (    $iterator as $key => $value) {
    echo     "$key: $value (", iterator_count($iterator), ")\n";
    }    ?>

    Yukarıdaki örneğin çıktısı:

    0: one (3)
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