htmlfilter.php

<?php
namespace Bitrix\Main\Text;
 
class HtmlFilter
{
    public static function encode($string, $flags = ENT_COMPAT, $doubleEncode = true)
    {
        return htmlspecialchars($string, $flags, (defined("BX_UTF") ? "UTF-8" : "ISO-8859-1"), $doubleEncode);
    }
}