Example use of HTMLPurifier PHP

html-purifier-example-use.php

<?php
// composer install ezyang/htmlpurifier
require 'vendor/autoload.php';

$config = HTMLPurifier_Config::createDefault();
$config->set('HTML.AllowedElements', 'a,i,b,p,div,strong,h1,h2,h3,h4,h5,ol,ul,li,br');
$config->set('HTML.AllowedAttributes', 'href,title,target,name');
$config->set('HTML.Attr.Name.UseCDATA', true);
$config->set('AutoFormat.RemoveEmpty.RemoveNbsp', true);
$config->set('Attr.AllowedFrameTargets', ['_blank']);
$config->set('AutoFormat.RemoveEmpty', true);
$purifier = new HTMLPurifier($config);
$clean_html = $purifier->purify($content);
?>