array(6) {
  [0]=>
  string(5) "mysql"
  [1]=>
  string(4) "3306"
  [2]=>
  string(7) "efprint"
  [3]=>
  string(7) "efprint"
  [4]=>
  string(7) "efprint"
  [5]=>
  string(57) "mysql:host=mysql;port=3306;dbname=efprint;charset=utf8mb4"
}