asXML string output, writing to file , xml string to file

xml-sample1.php

<?Php
require "xml-sample1.php";
$main1 = new SimpleXMLElement($str_xml);
echo $main1->asXML(); // string output
?>

echo $main1->asXML('test.php'); // writing to file

Example 1: Creating and Displaying XML

<?php
$xml = new SimpleXMLElement('<root></root>');
$xml->addChild('item', 'Apple');
echo $xml->asXML();  // Output: XML string
?>

Example 2: Writing XML to a File

<?php
$xml->asXML('data.xml');  // Writes XML to a file named data.xml
?>

Example 3: Adding Multiple Elements to XML

<?php
$xml = new SimpleXMLElement('<fruits></fruits>');
$xml->addChild('fruit', 'Apple');
$xml->addChild('fruit', 'Banana');
$xml->addChild('fruit', 'Cherry');
echo $xml->asXML();  // Output: XML string with all fruits
?>

Example 4: Adding Attributes to XML Elements

<?php
$xml = new SimpleXMLElement('<books></books>');
$book = $xml->addChild('book', 'PHP Programming');
$book->addAttribute('id', '101');
echo $xml->asXML();  // Output: XML string with attributes
?>