Jyxo\SpamFilter::isLinkSpam PHP Method

    public function isLinkSpam(string $text) : bool
    {
        $urlPattern = '~((ftp|http|https)://)?[\\-\\w]+(\\.[\\-\\w]+)*\\.[a-z]{2,6}~i';
        $linkCount = preg_match_all($urlPattern, $text, $matches);
        if (self::LINK_MAX_COUNT <= $linkCount) {
            // More links than allowed
            return true;
        }
        $wordCount = preg_match_all('~[\\pZ\\s]+~u', trim($text), $matches) + 1;
        if (self::LINK_WORDS_MIN_COUNT >= $wordCount) {
            // For short texts use links count check
            return self::LINK_SHORT_MAX_COUNT <= $linkCount;
        }
        // For long texts check links ratio
        return self::LINK_MAX_RATIO <= $linkCount / $wordCount;
    }