I'm trying to install HTML Purifier http://htmlpurifier.org/ but I get the following error Undefined variable: dirty_html. I was wondering how can I fix this problem?
Here is the PHP code.
require_once '../../htmlpurifier/library/HTMLPurifier.auto.php';
$config = HTMLPurifier_Config::createDefault();
$config->set('Core.Encoding', 'UTF-8'); // replace with your encoding
$config->set('HTML.Doctype', 'XHTML 1.0 Strict'); // replace with your doctype
$purifier = new HTMLPurifier($config);
$clean_html = $purifier->purify($dirty_html);
Here is my html form.
<form method="post" action="index.php">
<fieldset>
<ul>
<li><label for="about-me">About Me: </label>
<textarea rows="8" cols="60" name="about-me" id="about-me"></textarea></li>
<li><label for="my-interests">My Interests: </label>
<textarea rows="8" cols="60" name="interests" id="interests"></textarea></li>
<li><input type="submit" name="submit" value="Save Changes" class="save-button" />
</ul>
</fieldset>
</form>