<?php
/**
* extended simpleXMLElement
* @licence dual licence LGPL/MIT
* @author jonathan gotti <jgotti at jgotti dot net>
* @class verySimpleXMLElement
* @since 2009-12-15
*/
class verySimpleXMLElement extends SimpleXMLElement{
/**
* add a child to the current element and return it in the same way as original
* simpleXMLElement but without the original value verification that sometimes is just a mess.
* @param string $nodeName
* @param string $value
* @param string $nameSpace
* @return verySimpleXMLElement
*/
public function addChild($nodeName,$value=null,$nameSpace=null){
$node = parent::addChild($nodeName,null,$nameSpace);
if( $value !== null ){
#- $node->{0} = $value; <<-- this should work but doesn't on one production server of ours so replaced by next lines
$nnode= dom_import_simplexml($node);
$doc = $nnode->ownerDocument;
$nnode->appendChild($doc->createTextNode($value));
}
return $node;
}
/**
* same as addChild method but the value will be put inside a CData section.
* @param string $nodeName
* @param string $value
* @param string $nameSpace
* @return verySimpleXMLElement
*/
public function addCDataChild($nodeName,$value,$nameSpace=null){
$node = $this->addChild($nodeName,null,$nameSpace);
return $node->addCData($value);
}
/**
* add a CData section to the current element and return this for method chaining
* @param string $cdata
* @return $this
*/
public function addCData($cdata){
$node= dom_import_simplexml($this);
$doc = $node->ownerDocument;
$node->appendChild($doc->createCDATASection($cdata));
return $this;
}
/**
* exactly the same as simpleXMLElement::addAttribute()
* but return this for method chaining
* @param string $nodeName
* @param string $value
* @param string $nameSpace
* @return $this
*/
public function addAttribute($string,$value,$nameSpace=null){
parent::addAttribute($string,$value,$nameSpace);
return $this;
}
/**
* append a [very]SimpleXmlElement
* @param SimpleXmlElement $child passed by reference
* (must be done if we want further modification to the $child element to be applyed to the document)
* @return $this
*/
public function appendChild(SimpleXMLElement &$child){
list($node,$_child) = self::getSameDocDomNodes($this,$child);
$node->appendChild($_child);
$child = simplexml_import_dom($_child);
return $this;
}
/**
* remove given [very]SimpleXmlElement from current element
* @return $this
*/
public function removeChild(SimpleXMLElement $child){
$node = dom_import_simplexml($this);
$child = dom_import_simplexml($child);
$node->removeChild($child);
return $this;
}
/**
* replace a child [very]SimpleXmlElement with another [very]SimpleXmlElement
* @param SimpleXmlElement $newChild passed by reference
* (must be done if we want further modification to the newChild element to be applyed to the document)
* @param SimpleXmlElement $oldChild
* @return $this
*/
public function replaceChild(SimpleXmlElement &$newChild,SimpleXmlElement $oldChild){
list($oldChild,$_newChild) = self::getSameDocDomNodes($oldChild,$newChild);
$oldChild->parentNode->replaceChild($_newChild,$oldChild);
$newChild= simplexml_import_dom($_newChild);
return $this;
}
/**
* remove a [very]SimpleXmlElement from it's parent
* @return $this
*/
public function remove(){
$node = dom_import_simplexml($this);
$node->parentNode->removeChild($node);
return $this;
}
/**
* replace current element with another [very]SimpleXmlElement
* @param SimpleXmlElement $replaceElmt passed by reference
* (must be done if we want further modification to the $replaceElmt element to be applyed to the document)
* @return $this
*/
public function replace(SimpleXmlElement &$replaceElmt){
list($node,$_replaceElmt) = self::getSameDocDomNodes($this,$replaceElmt);
$node->parentNode->replaceChild($_replaceElmt,$node);
$replaceElmt = simplexml_import_dom($_replaceElmt);
return $this;
}
/**
* static utility method to get two dom elements and ensure that the second is part of the same document than the first given.
* @param SimpleXmlElement $node1
* @param SimpleXmlElement $node2
* @return array(DomElement,DomElement)
*/
static public function getSameDocDomNodes(SimpleXMLElement $node1,SimpleXMLElement $node2){
$node1 = dom_import_simplexml($node1);
$node2 = dom_import_simplexml($node2);
if(! $node1->ownerDocument->isSameNode($node2->ownerDocument) )
$node2 = $node1->ownerDocument->importNode($node2, true);
return array($node1,$node2);
}
}
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