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PHP XML

PHP XML

PHP XML Contents

PHP DOMNode Function hasChildNodes
PHP DOMNode Function hasAttributes
PHP DOMNode Function cloneNode
PHP DOMNodelist Function item
PHP DOMNamedNodeMap Function item
PHP DOMNamedNodeMap Function getNamedItemNS
PHP DOMNamedNodeMap Function getNamedItem
PHP DOMImplementation Function hasFeature
PHP DOMImplementation Function createDocumentType
PHP DOMImplementation Function createDocument
PHP DOMElement Function removeAttributeNS
PHP DOMElement Function removeAttributeNode
PHP DOMElement Function removeAttribute
PHP DOMElement Function hasAttributeNS
PHP DOMElement Function getAttribute
PHP DOMDocument Function getElementsByTagNameNS
PHP DOMDocument Function xinclude
PHP DOMDocument Function validate
PHP DOMDocument Function setAttributeNS
PHP DOMDocument Function setAttribute
 
 
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First posted :03/24/2008
Times viewed :319
 

DOMNode Function insertBefore

PHP Version: (No version information might be only in CVS. I have used this function in PHP5)

DOM: W3C DOM Level 2

Description

This function adds new child at the end of the children, if only one parameter is passed otherwise add the child before the current child.

Usage:

objectDOMNode->insertBefore ( object newnode [, object refnode])

This function inserts the new node newnode right before the node refnode. The return value is the inserted node. If you plan to do further modifications on the appended child you must use the returned node. If refnode is not supplied then newnode is appended to the children.

Throws DOMException if node cannot be inserted.

PHP Code:

<?php

$xmlstr = <<<XML

<?xml version="1.0" encoding="UTF-8"?>

<company>

<employee>

<employeename id="myId">test1</employeename>

<employeeaddress>testAddress1</employeeaddress>

<SSN>11111</SSN>

<company>XYZ Corporation</company>

</employee>

<employee>

<employeename id="myId1">test1</employeename>

<employeeaddress>testAddress1</employeeaddress>

<SSN>11111</SSN>

<company>ABC Corporation</company>

</employee>

</company>

XML;

$dom = new domDocument;

//load the XML string into the DOM

$dom->loadXML($xmlstr);

//retrieve the first element with name company

$company = $dom->getElementsByTagName('company')->item(0);

//retrieve the first element with name employee

$employee = $dom->getElementsByTagName('employee')->item(0);

//creates a new domXPath object by passing the DOM Document

$xpath = new domXPath($dom);

//create a new query

$query = "//employee";

//execute the xpath query

$xpathQuery = $xpath->query($query);

$size = $xpathQuery->length;

for ($i=0; $i<$size; $i++){

   $node = $xpathQuery->item($i);

   if($i==0){

      //perform the deep cloning for first attribute

      $clonenode = $node->cloneNode(true);

   }else{

      //clone only the node, not its child

      $clonenode = $node->cloneNode(false);

   }

   //create an attribute so that you can know that it is cloned

   $clonenode->setAttribute('cloned',$i);

   //use insertbefore to insert before first employee node.

   $company->insertbefore($clonenode,$employee);

echo "<HTML>";

echo "<Head>";

echo "<title>Example of DOMNode->cloneNode</title>";

echo "<Head>";

echo "<body>";

echo "<PRE>";

echohtmlentities($dom ->saveXML());

echo "</PRE>";

echo "</body>";

echo "</HTML>";

?>

Output:

The expected output would be:

<?xml version="1.0" encoding="UTF-8"?>
<company>
<employee cloned="0">
      <employeename id="myId">test1</employeename>
      <employeeaddress>testAddress1</employeeaddress>
      <SSN>11111</SSN>
      <company>XYZ Corporation</company>
</employee><employee cloned="1"/><employee>
      <employeename id="myId">test1</employeename>
      <employeeaddress>testAddress1</employeeaddress>
      <SSN>11111</SSN>
      <company>XYZ Corporation</company>
</employee>
<employee>
      <employeename id="myId1">test1</employeename>
      <employeeaddress>testAddress1</employeeaddress>
      <SSN>11111</SSN>
      <company>ABC Corporation</company>
</employee>
</company>

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