| No. | File | Line | Code |
| one | index.php | one hundred and thirty-seven | require(%s) |
| two | portal.php | eighteen | discuz_application->init() |
| three | source/class/discuz/discuz_application.php | sixty-five | discuz_application->_init_db() |
| four | source/class/discuz/discuz_application.php | four hundred and thirty-four | discuz_database::init() |
| five | source/class/discuz/discuz_database.php | twenty-three | db_driver_mysqli->connect() |
| six | source/class/db/db_driver_mysqli.php | seventy-four | db_driver_mysqli->_dbconnect() |
| seven | source/class/db/db_driver_mysqli.php | eighty-four | db_driver_mysqli->halt() |
| eight | source/class/db/db_driver_mysqli.php | two hundred and twenty-three | break() |