SplObjectStorage::removeAll

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

SplObjectStorage::removeAll — Removes objects contained in another storage from the current storage

说明

public SplObjectStorage::removeAll(SplObjectStorage $storage): int

Removes objects contained in another storage from the current storage.

参数

storage

The storage containing the elements to remove.

返回值

Returns the number of remaining objects.

范例

示例 #1 SplObjectStorage::removeAll() example

<?php
$o1 = new StdClass;
$o2 = new StdClass;
$a = new SplObjectStorage();
$a[$o1] = "foo";

$b = new SplObjectStorage();
$b[$o1] = "bar";
$b[$o2] = "gee";

var_dump(count($b));
$b->removeAll($a);
var_dump(count($b));
?>

以上例程的输出类似于：

int(2)
int(1)

参见