SplObjectStorage::offsetUnset()
(PHP 5 >= 5.3.0, PHP 7)
Removes an object from the storage
说明
public SplObjectStorage::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