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

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PHP - Manual: Dom\TokenList::supports

2025-05-10

Dom\TokenList::supports

(PHP 8 >= 8.4.0)

Dom\TokenList::supportsReturns whether the given token is supported

说明

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

Returns whether token is in the associated attribute's supported tokens.

参数

token
The token.

返回值

成功时返回 true, 或者在失败时返回 false

错误/异常

Throws a TypeError when the attribute does not define a supported tokens list.

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官方地址:https://www.php.net/manual/en/dom-tokenlist.supports.php

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