array(6) {
  ["db_type"] => string(5) "mysql"
  ["db_user"] => string(4) "root"
  ["db_pwd"] => string(16) "Shengqila9114!@#"
  ["db_host"] => string(34) "gz-cdb-alwspird.sql.tencentcdb.com"
  ["db_port"] => string(5) "62594"
  ["db_name"] => string(21) "exhibition_overallgui"
}