test01.php

1 - This program is suppose to connect to the petCatalog database.
2 - This program connected to the pettCatalog database.

3 - This program is suppose to close the petCatalog database.
4 - This program closed the pettCatalog database successfully.

If this program displayed the database name of a petCatalog in lines 2 and 4, the program executed successfully.
If this program did not display the database name of a petCatalog in lines 2 and 4, the program did not executed successfully.