PHP | DOMDocument createDocumentFragment() Function

Last Updated : 20 Feb, 2020
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The DOMDocument::createDocumentFragment() function is an inbuilt function in PHP which is used to create a new document fragment. Syntax: 
DOMDocumentFragment DOMDocument::createDocumentFragment( void )
Parameters: This function doesn’t accepts any parameters. Return Value: This function returns a new DOMDocumentFragment or FALSE if an error occurred. Below programs illustrate the DOMDocument::createDocumentFragment() function in PHP: Program 1: In this example we will create headings with fragments. php 
<?php

// Create a new DOM Document
$dom = new DOMDocument('1.0', 'iso-8859-1');

// Create a root element
$dom->loadXML("<root/>");

// Create a Fragment
$fragment = $dom->createDocumentFragment();

// Append the XML
$fragment->appendXML(
    "<h1>Heading 1</h1><h2>Heading 2</h2><h3>Heading 3</h3>");

// Append the fragment
$dom->documentElement->appendChild($fragment);

echo $dom->saveXML();
?>
Output: 
<?xml version="1.0"?>
<root><h1>Heading 1</h1><h2>Heading 2</h2><h3>Heading 3</h3></root>
Program 2: In this example we will create colored lines php 
<?php

// Create a new DOM Document
$dom = new DOMDocument('1.0', 'iso-8859-1');

// Create a root element
$dom->loadXML("<root/>");

// Create a Fragment
$fragment = $dom->createDocumentFragment();

// Colors
$colors = ['red', 'green', 'blue'];

for ($i = 0; $i < 3; $i++) {
    // Append the XML
    $fragment->appendXML(
"<div style='color: $colors[$i]'>This is $colors[$i]</div>");

    // Append the fragment
    $dom->documentElement->appendChild($fragment);
}

echo $dom->saveXML();
?>
Output: 
<?xml version="1.0"?>
<root>
    <div style="color: red">This is red</div>
    <div style="color: green">This is green</div>
    <div style="color: blue">This is blue</div>
</root>
Reference: https://www.php.net/manual/en/domdocument.createdocumentfragment.php

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