ArrayObject::offsetGet

    (PHP 5, PHP 7, PHP 8)

    ArrayObject::offsetGet — Returns the value at the specified index

    说明

    public ArrayObject::offsetGet(mixed $key): mixed

    参数

    key

    The index with the value.

    返回值

    The value at the specified index or null.

    错误／异常

    Produces an E_NOTICE error message when the specified index does not exist.

    示例

    示例 #1 ArrayObject::offsetGet() example

    <?php
    $arrayobj     = new ArrayObject(array('zero', 7, 'example'=>'e.g.'));
    var_dump($arrayobj->offsetGet(1));
    var_dump($arrayobj->offsetGet('example'));
    var_dump($arrayobj->offsetExists('notfound'));
    ?>

    以上示例会输出：

    int(7)
string(4) "e.g."
bool(false)

    Improve This Page

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

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top