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PHP - Manual: SplObjectStorage::offsetUnset - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: SplObjectStorage::offsetUnset

2025-04-28

SplObjectStorage::offsetUnset

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

SplObjectStorage::offsetUnsetRemoves an object from the storage

说明

public SplObjectStorage::offsetUnset(object $object): void

Removes an object from the storage.

注意:

SplObjectStorage::offsetUnset() is an alias of SplObjectStorage::detach().

参数

object

The object to remove.

返回值

没有返回值。

示例

示例 #1 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));
?>

以上示例的输出类似于:

int(1)
int(0)

参见

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官方地址:https://www.php.net/manual/en/splobjectstorage.offsetunset.php

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