SplObjectStorage::count
(PHP 5 >= 5.1.0)
SplObjectStorage::count — Returns the number of objects in the storage
說明
public int SplObjectStorage::count
( void
)
Counts the number of objects in the storage.
參數
此函式沒有參數。
回傳值
The number of objects in the storage.
範例
Example #1 SplObjectStorage::count() example
<?php
$s = new SplObjectStorage();
$o1 = new StdClass;
$o2 = new StdClass;
$s->attach($o1);
$s->attach($o2);
$s->attach($o1);
var_dump($s->count());
var_dump(count($s));
?>
上例的輸出類似於：
int(2) int(2)
參見
- SplObjectStorage::attach() - Adds an object in the storage
- SplObjectStorage::detach() - Removes an object from the storage
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