DOMXPath::__construct()
(PHP 5, PHP 7)
Creates a new DOMXPath object
说明
public DOMXPath::__construct(DOMDocument$doc)
Creates a new DOMXPath object.
参数
- $doc
The DOMDocument associated with the DOMXPath.
The DOMXPath object doesn't create a reference to the document. If you load a new xml using either load, loadXML or loadHTML functions the DOMXPath object will still query and evaluate over the source in the DOMDocument when it was created.
As of PHP 5.2.0, DOMXPath object implements XPath 1.0.