DOMElement::setAttributeNode

    (PHP 5, PHP 7, PHP 8)

    DOMElement::setAttributeNode — Adds new attribute node to element

    说明

    public DOMElement::setAttributeNode(DOMAttr $attr): DOMAttr|null|false

    Adds new attribute node attr to element. If an attribute with the same name already exists on the element, that attribute is replaced by attr.

    参数

    attr

    The attribute node.

    返回值

    Returns the old attribute if it has been replaced or null if there was no old attribute. If a DOM_WRONG_DOCUMENT_ERR error is raised, and strictErrorChecking is false, false is returned.

    错误／异常

    DOM_WRONG_DOCUMENT_ERR

    Raised if attr belongs to a different document than the element.

    参见

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