# 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.

### 示例

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));
?>`

以上示例的输出类似于：

    int(2)
    int(1)

### 参见

- SplObjectStorage::addAll() - Adds all objects from another storage

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