How can DOMDocument be used to create nested lists in PHP?

To create nested lists using DOMDocument in PHP, you can first create a new DOMDocument object, then create the outer list element (ul or ol), and append it to the document. Next, create the inner list elements (li) and append them to the outer list element to create the nested structure. Finally, output the generated HTML using the saveHTML() method of the DOMDocument object. 

<?php
// Create a new DOMDocument object
$doc = new DOMDocument();

// Create the outer list element
$outerList = $doc->createElement('ul');
$doc->appendChild($outerList);

// Create and append inner list elements
$innerList1 = $doc->createElement('li', 'Item 1');
$outerList->appendChild($innerList1);

$innerList2 = $doc->createElement('li', 'Item 2');
$outerList->appendChild($innerList2);

// Create a nested list
$nestedList = $doc->createElement('ul');
$innerList2->appendChild($nestedList);

$nestedItem1 = $doc->createElement('li', 'Nested Item 1');
$nestedList->appendChild($nestedItem1);

$nestedItem2 = $doc->createElement('li', 'Nested Item 2');
$nestedList->appendChild($nestedItem2);

// Output the generated HTML
echo $doc->saveHTML();
?>

Keywords

DOMDocument nested lists PHP create HTML lists

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