DOMDocument::createAttributeNS

    (PHP 5, PHP 7, PHP 8)

    DOMDocument::createAttributeNS — Create new attribute node with an associated namespace

    说明

    publicDOMDocument::createAttributeNS(?string$namespace, string$qualifiedName): DOMAttr|false

    This function creates a new instance of class DOMAttr. 此节点出现在文档中，除非是用诸如 DOMNode->appendChild() 等函数来将其插入。

    参数

    namespace

    The URI of the namespace.

    qualifiedName

    The tag name and prefix of the attribute, as prefix:tagname.

    返回值

    The new DOMAttr or false if an error occurred.

    错误／异常

    DOM_INVALID_CHARACTER_ERR

    Raised if qualifiedName contains an invalid character.

    DOM_NAMESPACE_ERR

    Raised if qualifiedName is a malformed qualified name, or if qualifiedName has a prefix and namespace is null.

    更新日志

    版本说明
    8.3.0 Calling this method without specifying a prefix will now choose a prefix instead of assuming the default namespace. Previously this would create an attribute without a prefix and incorrectly apply the namespace to the owner element because default namespaces don't apply on attributes.
    8.3.0 Calling this method using a prefix that was already declared on the owner element with a different namespace URI will now change the new prefix to avoid creating namespace conflicts. This aligns the behaviour with the DOM specification. Previously this threw a DOMException with code DOM_NAMESPACE_ERR.

    参见

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