Dom\TokenList::toggle

(PHP 8 >= 8.4.0)

Dom\TokenList::toggle — Toggles the presence of a token in the list

Опис

public Dom\TokenList::toggle(string $token, ?bool $force = null): bool

Toggles the presence of token in the list.

Параметри

token: The token to toggle.
force: If force is provided, setting it to true will add the token, and setting it to false will remove the token.

Значення, що повертаються

Returns true if the token is in the list after the call, false otherwise.

Помилки/виключення

Throws a ValueError if a token contains any null bytes.
Throws a Dom\DOMException with code Dom\SYNTAX_ERR if a token is the empty string.
Throws a Dom\DOMException with code Dom\INVALID_CHARACTER_ERR if a token contains any ASCII whitespace.

Приклади

Приклад #1 Dom\TokenList::toggle() example

Toggles three classes, two without force, and one with.

<?php
$dom = Dom\HTMLDocument::createFromString('<p class="font-bold important"></p>', LIBXML_NOERROR);
$p = $dom->body->firstChild;

$classList = $p->classList;
$classList->toggle('font-bold', 'font-small');
$classList->toggle('important', force: true);

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

Поданий вище приклад виведе:

<p class="font-bold important"></p>

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