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Dom\TokenList::contains

(PHP 8 >= 8.4.0)

Dom\TokenList::contains — Returns whether the list contains a given token

说明

public Dom\TokenList::contains(string $token): bool

Returns whether the list contains token.

参数

token
The token.

返回值

Returns true if the list contains token, false otherwise.

示例

示例 #1 Dom\TokenList::contains() example

Checks whether two classes are present on the paragraph.

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

$classList = $p->classList;
var_dump(
$classList->contains('important'),
$classList->contains('font-small'),
);
?>

以上示例会输出：

bool(true)
bool(false)