PHP | DOMDocument createDocumentFragment() Function

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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 
  
// 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 
  
// 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