app\models\Beatmapset::description PHP Method

    public function description()
    {
        $topic = Topic::find($this->thread_id);
        if ($topic === null) {
            return;
        }
        $post = Post::find($topic->topic_first_post_id);
        // Any description (after the first match) that matches
        // '[-{15}]' within its body doesn't get split anymore,
        // and gets stored in $split[1] anyways
        $split = preg_split('[-{15}]', $post->post_text, 2);
        // Return empty description if the pattern was not found
        // (mostly older beatmapsets)
        $description = $split[1] ?? '';
        return (new \App\Libraries\BBCodeFromDB($description, $post->bbcode_uid, true))->toHTML(true);
    }