DOMNode::hasChildNodes
I wrote a function for me to handle several insert modes (including insertAfter)
<?php
public function myInsertNode($newNode, $refNode, $insertMode=null) {
if(!$insertMode || $insertMode == "inside") {
$refNode->appendChild($newNode);
} else if($insertMode == "before") {
$refNode->parentNode->insertBefore($newNode, $refNode);
} else if($insertMode == "after") {
if($refNode->nextSibling) {
$refNode->parentNode->insertBefore($newNode, $refNode->nextSibling);
} else {
$refNode->parentNode->appendChild($newNode);
}
}
}
?>
DOMNode::insertBefore
(PHP 5)
DOMNode::insertBefore — Añade un nuevo hijo antes del nodo de referencia
Descripción
Esta función inserta un nuevo nodo justo antes que el nodo de referencia. Si planea hacer modificaciones posteriores al hijo añadido debe usar el nodo devuelto.
Parámetros
- newnode
-
El nuevo nodo.
- refnode
-
El nodo de referencia. Si no se proporciona, newnode es añadido al hijo.
Valores devueltos
El nodo insertado.
Errores/Excepciones
- DOM_NO_MODIFICATION_ALLOWED_ERR
-
Lanzado si este nodo es de sólo lectura o si el padre previo del nodo que va a ser insertado es de sólo lectura.
- DOM_HIERARCHY_REQUEST_ERR
-
Lanzado si este nodo es de un tipo de no permite hijos del tipo del nodo newnode, o si el nodo a añadir es uno de los progenitores del nodo o si es el nodo en sí.
- DOM_WRONG_DOCUMENT_ERR
-
Lanzado si newnode fue creado desde un documento diferente del que creó este nodo.
- DOM_NOT_FOUND
-
Lanzado si refnode no es un hijo de este nodo.
add a note
User Contributed Notes
DOMNode::insertBefore
felixsigl at gmail dot com
12-May-2009 10:17
naholyr at yahoo dot fr
08-Feb-2009 11:52
A very usual needed function is "appendSibling" to insert a node just before another one :
<?php
/**
* @param DOMNode $newnode Node to insert next to $ref
* @param DOMNode $ref Reference node
* @requires $ref has a parent node
* @return DOMNode the real node inserted
*/
function appendSibling(DOMNode $newnode, DOMNode $ref)
{
if ($ref->nextSibling) {
// $ref has an immediate brother : insert newnode before this one
return $ref->parentNode->insertBefore($newnode, $ref->nextSibling);
} else {
// $ref has no brother next to him : insert newnode as last child of his parent
return $ref->parentNode->appendChild($newnode);
}
}
?>
odonnell dot NOSPAM at ideaengineinc dot com
06-May-2008 08:57
Here's a usage example.
If you try this, you'll get an error message.
$refNode->insertBefore($newNode, $refNode);
Try this instead...
$refNode->parentNode->insertBefore($newNode, $refNode);
DrTebi at Yahoo
03-Oct-2007 12:54
Sorry, my previous posting worked only for the top node. Here the corrected version, which will work for any node:
XML
----
<?xml version="1.0"?>
<contacts>
<person>Adam</person>
<person>Eva</person>
<person>Thomas</person>
</contacts>
PHP
---
<?php
// load XML, create XPath object
$xml = new DomDocument();
$xml->preserveWhitespace = false;
$xml->load('contacts.xml');
$xpath = new DOMXPath($xml);
// get node eva, which we will append to
$eva = $xpath->query('/contacts/person[.="Eva"]')->item(0);
// create node john
$john = $xml->createElement('person', 'John');
// insert john after eva
// "in eva's parent node (=contacts) insert
// john before eva's next node"
// this also works if eva would be the last node
$eva->parentNode->insertBefore($john, $eva->nextSibling);
// show result
header('Content-Type: text/plain');
print $xml->saveXML();
?>
Result
------
<?xml version="1.0"?>
<contacts>
<person>Adam</person>
<person>Eva</person><person>John</person>
<person>Thomas</person>
</contacts>
justin at redwiredesign dot com
07-Feb-2007 04:20
The previous example is incorrect, and causes a DOM_NOT_FOUND error, as the child nodes are not direct descendants of the root node.
Therefore, the line:
$parent_path = "/root";
needs to change to:
$parent_path = "/root/parent";
or
$parent_path = "//parent";
for this example to work
25-Aug-2005 06:34
moving an existing node within the DomDocument:
<root>
<parent>
<child><name>Bob</name></child>
<child><name>Sue</name></child>
</parent>
</root>
$dom = new DomDocument();
$dom->load("sample.xml");
$parent_path = "/root";
$query = "//child[position() = 2]";
$query2 = "//child[position() = 1]";
$xpath = new DomXPath($dom);
$parent = $xpath->query($parent_path);
$under = $xpath->query($query);
$above = $xpath->query($query2);
$parent->item(0)->insertBefore($under->item(0), $above->item(0));
$dom->save("sample.xml");
Should produce:
<root>
<parent>
<child><name>Sue</name></child>
<child><name>Bob</name></child>
</parent>
</root>
jg at handcode dot de
18-Aug-2005 07:18
example to insert <newnode/> between <chid1/> and <child2/>
<?xml version="1.0" encoding="ISO-8859-1" ?>
<root>
<parent>
<child nr="1"/>
<child nr="2"/>
</parent>
</root>
<?php
$xml_src = 'test.xml';
// XPath-Querys
$parent_path = "//parent";
$next_path = "//parent/child[@nr='2']";
// Create a new DOM document
$dom = new DomDocument();
$dom->load($xml_src);
// Find the parent node
$xpath = new DomXPath($dom);
// Find parent node
$parent = $xpath->query($parent_path);
// new node will be inserted before this node
$next = $xpath->query($next_path);
// Create the new element
$element = $dom->createElement('newnode');
// Insert the new element
$parent->item(0)->insertBefore($element, $next->item(0));
echo $dom->saveXML();
?>
Jerry Ellis
03-Jun-2005 07:45
1st argument) a node to insert
2nd argument) a reference node - this is the node that the new node will be inserted before
The trick to using this method is that the OBJECT on which you actually CALL the insertBefore() method is actually the PARENT node of the reference node!
INCORRECT:
$DOMNode_refNode->insertBefore($DOMNode_newNode, $DOMNode_refNode);
CORRECT:
$DOMNode_refNode->parentNode->insertBefore($DOMNode_newNode, $DOMNode_refNode);