DOMDocument::createAttributeNS

(PHP 5, PHP 7, PHP 8)

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

说明

public DOMDocument::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