SplFixedArray::offsetExists

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

    SplFixedArray::offsetExists — Returns whether the requested index exists

    Beschreibung

    public SplFixedArray::offsetExists(int $index): bool

    Checks whether the requested index index exists.

    Parameter-Liste

    index

    The index being checked.

    Rückgabewerte

    true if the requested index exists, otherwise false

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 1 note

    up
    3
    depoemarc at swap dot fn dot ln dot googlemail dot com
    10 years ago
    It should be noted that offsetExists behaves like "offsetIsSet" rather than "offsetIsValid":<?php$arr = new SplFixedArray(3);var_dump($arr->offsetExists(1)); // false$arr[1] = 42; // $arr->offsetSet(1, 42);var_dump($arr->offsetExists(1)); // true$arr[1] = null; // $arr->offsetSet(1, null);var_dump($arr->offsetExists(1)); // trueunset($arr[1]); // $arr->offsetUnset(1);var_dump($arr->offsetExists(1)); // falsevar_dump($arr);/*object(SplFixedArray)[1]  null  null  null*/?>
    ＋add a note
    To Top