DOMElement::setIdAttributeNS

(PHP 5, PHP 7, PHP 8)

DOMElement::setIdAttributeNS — Declares the attribute specified by local name and namespace URI to be of type ID

public DOMElement::setIdAttributeNS(string $namespace, string $qualifiedName, bool $isId): void

Declares the attribute specified by qualifiedName and namespace to be of type ID.

namespace: The namespace URI of the attribute.
qualifiedName: The local name of the attribute, as prefix:tagname.
isId: Set it to true if you want name to be of type ID, false otherwise.

没有返回值。

DOMDocument::getElementById() - Searches for an element with a certain id
DOMElement::setIdAttribute() - Declares the attribute specified by name to be of type ID
DOMElement::setIdAttributeNode() - Declares the attribute specified by node to be of type ID

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