The DOMXPath class

(PHP 5, PHP 7, PHP 8)

简介

Supports XPath 1.0

classDOMXPath {

publicreadonlyDOMDocument$document;

publicbool$registerNodeNamespaces;

public__construct(DOMDocument$document, bool$registerNodeNS = true)

publicevaluate(string$expression, ?DOMNode$contextNode = null, bool$registerNodeNS = true): mixed

publicquery(string$expression, ?DOMNode$contextNode = null, bool$registerNodeNS = true): mixed

}

document
registerNodeNamespaces: When set to true, namespaces in the node are registered.

版本	说明
8.0.0	The `registerNodeNamespaces` property has been added.

DOMXPath::__construct — Creates a new DOMXPath object
DOMXPath::evaluate — Evaluates the given XPath expression and returns a typed result if possible
DOMXPath::query — Evaluates the given XPath expression
DOMXPath::registerNamespace — Registers the namespace with the DOMXPath object
DOMXPath::registerPhpFunctions — Register PHP functions as XPath functions