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The Dom\NamespaceInfo class

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This represents immutable information about namespaces of an element. This decouples namespaces from attributes, which was incorrectly intertwined for the old DOM classes.

Intro

This represents immutable information about namespaces of an element. This decouples namespaces from attributes, which was incorrectly intertwined for the old DOM classes.

Class synopsis

final Dom\NamespaceInfo { }

Properties

prefix: The namespace prefix of the attribute.
namespaceURI: The namespace URI of the attribute.
element: The element that this namespace information is about.

Source: reference/dom/dom/dom-namespaceinfo.xml · from the official PHP manual (php/doc-en)