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  • SplObjectStorage::offsetUnset()

    (PHP 5 >= 5.3.0, PHP 7)

    Removes an object from the storage

    说明

    publicSplObjectStorage::offsetUnset(object $object) : void

    Removes an object from the storage.

    Note:

    SplObjectStorage::offsetUnset() is an alias of SplObjectStorage::detach().

    参数

    $object

    The object to remove.

    返回值

    没有返回值。

    范例

    SplObjectStorage::offsetUnset() example

    <?php
    $o = new StdClass;
    $s = new SplObjectStorage();
    $s->attach($o);
    var_dump(count($s));
    $s->offsetUnset($o); // Similar to unset($s[$o])
    var_dump(count($s));
    ?>
    

    以上例程的输出类似于:

    int(1)
    int(0)
    

    参见

    • SplObjectStorage::offsetGet() Returns the data associated with an object
    • SplObjectStorage::offsetSet() Associates data to an object in the storage
    • SplObjectStorage::offsetExists() Checks whether an object exists in the storage