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PHP - Manual: Dom\TokenList::add - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: Dom\TokenList::add

2025-05-10

Dom\TokenList::add

(PHP 8 >= 8.4.0)

Dom\TokenList::addAdds the given tokens to the list

说明

public Dom\TokenList::add(string ...$tokens): void

Adds the given tokens to the list, but not any that were already present.

参数

tokens
The tokens to add.

返回值

没有返回值。

错误/异常

示例

示例 #1 Dom\TokenList::add() example

Adds two classes to a newly created paragraph element.

<?php
$dom
= Dom\HTMLDocument::createEmpty();
$p = $dom->createElement('p');

$classList = $p->classList;
$classList->add('font-bold', 'important');

echo
$dom->saveHtml($p);
?>

以上示例会输出:

<p class="font-bold important"></p>
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官方地址:https://www.php.net/manual/en/dom-tokenlist.add.php

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