$dbhw : Link to the forum master data basis.
$dbhr : Link to the forum slave data basis (if any)
$md_db_extension : Name extension of the forum data basis currently in process
Should your forum be configured to use several data bases, the name extension of the forum data basis will be like forum_$md_db_extension
Constante md_one_database : Indicates whether the forum uses one or several databases
Constante md_modrewrite : Variable precising if the forum modrewriting is activated
$md_forum_id : ID of the forum in process
$md_forum_url : URL of the forum in process
$md_cat_id : ID of the category in process
$md_cat_url : URL of the category in process
$md_subcat_id : ID of the sub category in process
$md_subcat_url : URL of the sub category in process
$md_topic_id : ID of the topic in process
$md_post_id : ID of the post in process
$md_user : Name of the user in process
$md_user_id : ID of the user in process
$md_user_ip : IP address of the machine
$md_user_proxy_ip : IP behind the proxy server (if this is a transparent proxy)
$md_password : password of the user in process (format md5)
$md_topic_per_page : Default number of topics per page for the topic list of a category