(PHP 5 >= 5.1.0)
SplObjectStorage::attach — Adds an object in the storage
Adds an object inside the storage, and optionally associate it to some data.
没有返回值。
Example #1 SplObjectStorage::attach() example
<?php
$o1 = new StdClass;
$o2 = new StdClass;
$s = new SplObjectStorage();
$s->attach($o1); // similar to $s[$o1] = NULL;
$s->attach($o2, "hello"); // similar to $s[$o2] = "hello";
var_dump($s[$o1]);
var_dump($s[$o2]);
?>
以上例程的输出类似于：
NULL string(5) "hello"
| 版本 | 说明 |
|---|---|
| 5.3.0 |
Added the data parameter.
|
rafal dot wrzeszcz at wrzasq dot pl (2013-05-22 10:29:13)
Better way (imho) is to call:
$storage->removeAll($storage);
Especially, that sometimes (had no time to investigate) removeAllExcept(new SplObjectStorage()) leaves some elements.