$11.$ Modify the following PHP code in such a way that you trigger the exception$-$handling mechanism using the myException class.

$\_\_\_$ new $\_\_\_($$msg$,$ $code$)$;

$12.$ Modify the following PHP code such that it runs cleanly.

$\_\_\_\{$

$//$ do something, maybe throw some exceptions

$\}\_\_\_($Exception $e$)\{$

$//$ handle exception

$\}$

$13.$ Modify the following code to trap exceptions of the myException class and store the results in the variable $e$.$

catch $(\_\_\_\_\_\_)$

$\{$

$//$ handle exception

$\}$