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    InfiniteIterator クラス

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

    はじめに

    InfiniteIterator は、 他のイテレータを受け取って無限に反復させます。 最後までたどり着いたときに手動で巻き戻す必要はありません。

    クラス概要

    class InfiniteIterator extends IteratorIterator {
    /* メソッド */
    public __construct(Iterator $iterator)
    public next(): void
    /* 継承したメソッド */
    public IteratorIterator::current(): mixed
    public IteratorIterator::getInnerIterator(): ?Iterator
    public IteratorIterator::key(): mixed
    public IteratorIterator::next(): void
    public IteratorIterator::rewind(): void
    public IteratorIterator::valid(): bool
    }

    目次

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    User Contributed Notes 2 notes

    up
    20
    Anonymous
    12 years ago
    to loop through object keys and reset to the start, try this:
    <?php

    $obj     = new stdClass();
    $obj->Mon = "Monday";
    $obj->Tue = "Tuesday";
    $obj->Wed = "Wednesday";
    $obj->Thu = "Thursday";
    $obj->Fri = "Friday";
    $obj->Sat = "Saturday";
    $obj->Sun = "Sunday";

    $infinate = new InfiniteIterator(new ArrayIterator($obj));
    foreach ( new     LimitIterator($infinate, 0, 14) as $value ) {
    print(    $value . PHP_EOL);
    }

    ?>

    will output:

    Monday
    Tuesday
    Wednesday
    Thursday
    Friday
    Saturday
    Sunday
    Monday
    Tuesday
    Wednesday
    Thursday
    Friday
    Saturday
    Sunday

    Can be useful when doing date operations or recurring events
    up
    13
    vascowhite at gmail dot com
    11 years ago
    It is important to realise that rewind() must be called on any iterator before using it or you may experience undefined behaviour, see example code and output here http://3v4l.org/rvNpU

    See this bug report https://bugs.php.net/bug.php?id=63823&edit=2 for a fuller explanation.
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