SplObjectStorage::offsetGet

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

    SplObjectStorage::offsetGet — Returns the data associated with an object

    说明

    publicSplObjectStorage::offsetGet(object$object): mixed

    Returns the data associated with an object in the storage.

    参数

    object

    The object to look for.

    返回值

    The data previously associated with the object in the storage.

    错误／异常

    Throws UnexpectedValueException when object could not be found.

    示例

    示例 #1 SplObjectStorage::offsetGet() example

    <?php
    $s     = new SplObjectStorage;

    $o1 = new stdClass;
    $o2 = new stdClass;

    $s[$o1] = "hello";
    $s->attach($o2);


    var_dump($s->offsetGet($o1)); // Similar to $s[$o1]
    var_dump($s->offsetGet($o2)); // Similar to $s[$o2]
    ?>

    以上示例的输出类似于：

    string(5) "hello" NULL

    参见

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