mysql_connect(host,login,password)
mysql_close(ID_connection) 
mysql_error() 

mysql_select_db(database,ID_connection)

mysql_query(ID_database,query)

mysql_db_query(database,query,ID_connection)

mysql_fetch_row(ID_query)
mysql_num_rows(ID_query) 
mysql_num_fields(ID_query) 

mysql_fetch_array(ID_query)