The DOMXPath class

Introduction

Allows to use XPath 1.0 queries on HTML or XML documents.

DOMXPath

/* Properties */

public readonly DOMDocument $document;

public bool $registerNodeNamespaces;

/* Methods */

public __construct(DOMDocument $document, bool $registerNodeNS = true)

public mixed evaluate(string $expression, DOMNodenull $contextNode = null, bool $registerNodeNS = true)

public mixed query(string $expression, DOMNodenull $contextNode = null, bool $registerNodeNS = true)

public static string quote(string $str)

public bool registerNamespace(string $prefix, string $namespace)

public void registerPhpFunctionNS(string $namespaceURI, string $name, callable $callable)

public void registerPhpFunctions(stringarraynull $restrict = null)

document: The document that is linked to this object.
registerNodeNamespaces: When set to true, namespaces in the node are registered.

Version	Description
8.4.0	It is no longer possible to clone a DOMXPath object. Doing so will result in an exception being thrown. Prior to PHP 8.4.0 this resulted in an unusable object.
8.0.0	The `registerNodeNamespaces` property has been added.

Table of Contents

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::quote — Quotes a string for use in an XPath expression
DOMXPath::registerNamespace — Registers the namespace with the DOMXPath object
DOMXPath::registerPhpFunctionNS — Register a PHP functions as namespaced XPath function
DOMXPath::registerPhpFunctions — Register PHP functions as XPath functions