앞서 얘기한대로 설명은 따로 없습니다.
배열 변수가 모아져 있으니
각각에 대한 설명은 코멘트로 나누면 될듯합니다.

$board Array
(
    [bo_table]
    [gr_id]
    [bo_subject]
    [bo_admin]
    [bo_list_level]
    [bo_read_level]
    [bo_write_level]
    [bo_reply_level]
    [bo_comment_level]
    [bo_upload_level]
    [bo_download_level]
    [bo_html_level]
    [bo_link_level]
    [bo_trackback_level]
    [bo_count_delete]
    [bo_count_modify]
    [bo_read_point]
    [bo_write_point]
    [bo_comment_point]
    [bo_download_point]
    [bo_use_category]
    [bo_category_list]
    [bo_disable_tags]
    [bo_use_sideview]
    [bo_use_file_content]
    [bo_use_secret]
    [bo_use_comment]
    [bo_use_good]
    [bo_use_nogood]
    [bo_use_name]
    [bo_use_signature]
    [bo_use_ip_view]
    [bo_use_trackback]
    [bo_use_list_view]
    [bo_use_list_content]
    [bo_table_width]
    [bo_subject_len]
    [bo_page_rows]
    [bo_new]
    [bo_hot]
    [bo_image_width]
    [bo_skin]
    [bo_image_head]
    [bo_image_tail]
    [bo_include_head]
    [bo_include_tail]
    [bo_content_head]
    [bo_content_tail]
    [bo_insert_content]
    [bo_gallery_cols]
    [bo_upload_size]
    [bo_reply_order]
    [bo_use_search]
    [bo_order_search]
    [bo_count_write]
    [bo_count_comment]
    [bo_write_min]
    [bo_write_max]
    [bo_comment_min]
    [bo_comment_max]
    [bo_notice]
    [bo_upload_count]
    [bo_use_email]
    [bo_1]
    [bo_2]
    [bo_3]
    [bo_4]
    [bo_5]
    [bo_6]
    [bo_7]
    [bo_8]
    [bo_9]
    [bo_10]
)