La clase DOMImplementation

(PHP 5, PHP 7, PHP 8)

Introducción

La interfaz DOMImplementation proporciona varios métodos para realizar operaciones que son independientes de cualquier instancia en particular del modelo de objetos del documento.

Sinopsis de la Clase

class DOMImplementation {
/* Métodos */
public createDocument(?string $namespace = null, string $qualifiedName = "", ?DOMDocumentType $doctype = null): DOMDocument|false
public createDocumentType(string $qualifiedName, string $publicId = "", string $systemId = ""): DOMDocumentType|false
public hasFeature(string $feature, string $version): bool
}

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LANGE.LUDO
10 years ago
Ok got it working like a charm using "proxy pattern" with traits. The idea being declaring the common methods inside a "trait" in order for extended and registered Node Classes to have access even if not derived / child of the extended DOMNode…Here a small snippet :<?php    namespace my;    trait tNode    {    // We need the magic method __get in order to add properties such as DOMNode->parentElement        public function __get($name)        {    if(property_exists($this, $name)){return $this->$name;}            if(method_exists($this, $name)){return $this->$name();}            throw new \ErrorException('my\\Node property \''.(string) $name.'\' not found…', 42, E_USER_WARNING);        }        // parentElement property definition        private function parentElement()        {    if($this->parentNode === null){return null;}            if($this->parentNode->nodeType === XML_ELEMENT_NODE){return $this->parentNode;}            return $this->parentNode->parentElement();        }        // JavaScript equivalent        public function isEqualNode(\DOMNode $node){return $this->isSameNode($node);}        public function compareDocumentPosition(\DOMNode $otherNode)        {    if($this->ownerDocument !== $otherNode->ownerDocument){return DOCUMENT_POSITION_DISCONNECTED;}            $c = strcmp($this->getNodePath(), $otherNode->getNodePath());            if($c === 0){return 0;}            else if($c < 0){return DOCUMENT_POSITION_FOLLOWING | ($c < -1 ? DOCUMENT_POSITION_CONTAINED_BY : 0);}            return DOCUMENT_POSITION_PRECEDING | ($c > 1 ? DOCUMENT_POSITION_CONTAINS : 0);        }        public function contains(\DOMNode $otherNode){return ($this->compareDocumentPosition($otherNode) >= DOCUMENT_POSITION_CONTAINED_BY);}    }    class Document extends \DomDocument    {    public function __construct($version=null, $encoding=null)        {    parent::__construct($version, $encoding);            $this->registerNodeClass('DOMNode', 'my\Node');            $this->registerNodeClass('DOMElement', 'my\Element');            $this->registerNodeClass('DOMDocument', 'my\Document');            /* [...] */        }    }    class Element extends \DOMElement    {    use tNode;        /* [...] */    }    class Node extends \DOMNode    {    use tNode;        /* [...] */    }?>
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