DOMCharacterData Function deleteData

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

DOM: W3C DOM Level 1

Description

This function removes a range of characters from a Text Node (DOMCharacterData).

Usage:

void DOMCharacterData->deleteData ( int offset, int count)

Deletes count characters starting from position offset. If the sum of offset and count exceeds the length, then all characters to the end of the data are deleted.

It throws DOMException if offset is negative or greater than the number of characters in data, or if count is negative.

Example:

The XML file, which I have used contains following data. I have stored this file in “c:/topxml_demo/php/xml_files/employee.xml” directory.

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

<employee>

                        <employeename>test</employeename>

                        <employeeaddress>test123</employeeaddress>

                        <SSN>12343456</SSN>

                        <company>TOPXML</company>

</employee>

PHP Code:

<?php

    $doc = new DomDocument;

// Load the xml file into DOMDocument. I have used load() function to load it froma file.

$doc->Load('C:/topxml_demo/php/xml_files/employee.xml');

// We retrieve the attribute named id of the employee element

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

//Create a new Element

$newElement = $doc ->createElement('surname');

//create a Text Node

$textNode = $doc ->createTextNode ("Text Node Created");

//delete some text from Text Node. I have deleted first five characters from this text so now the text node should contain”Node Created”

$textNode->deleteData(0,5);

//append the Text Node into the newly created node

$newElement -> appendChild($textNode);

//append the new element to the employee element

$employee  -> appendChild($newElement);

//save the DOMDocument into a file

$test = $doc->save("C:/topxml_demo/php/xml_files/save1.xml");

 echo "<B>DOMCharacterData->deleteData example<B>"

 ?>

Output:

The Content of save1.xml is

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

<employee>

               <employeename>test</employeename>

               <employeeaddress>test123</employeeaddress>

               <SSN>12343456</SSN>

               <company>TOPXML</company>

               <surname>Node Created</surname>

</employee>