sanitizer.php

См. документацию.

<?php
namespace Bitrix\Vote\Inner;
 
class Sanitizer
{
    private static \CBXSanitizer $sanitizer;
 
    protected static function getSanitizer(): \CBXSanitizer
    {
        if (!isset(static::$sanitizer))
        {
            $sanitizer = new \CBXSanitizer();
            $sanitizer->applyDoubleEncode(false);
            $sanitizer->setLevel(\CBXSanitizer::SECURE_LEVEL_LOW);
            static::$sanitizer = $sanitizer;
        }
        return static::$sanitizer;
    }
 
    public static function cleanText(?string $text): string
    {
        if (empty($text) || mb_strpos($text, '<') === false)
        {
            return strval($text);
        }
        return static::getSanitizer()->sanitizeHtml($text);
    }
}