Question

I have a custom exception class that extends Exception and adds on the ability to pass back more data on what threw the exception. The problem now is if I want to catch my custom exception and a standard exception, but handle them with the same block of code, I don’t know how to do that other than create a new function (which I don’t want to do for every place I’d like to use this).

try {

} catch(QM\DebugInfoException $e) {
    // I don't want to duplicate the Exception handling code up here
}catch(Exception $e){
    $db->rollBack();

    $return['error'] = 1;
    $return['errInfo'] = array(
        'code' => $e->getCode(),
        'message' => $e->getMessage(),
        'trace' => $e->getTraceAsString()
    );

    // I'd rather handle both here, and just add data on to $return['errInfo']
    switch ($ExceptionType) {
        case 'QM\DebugInfoException':
            $return['errInfo']['extraInfo'] = $e->getExtraInfo();
            break;
    }
}

Does anyone have any good ideas on this?

Answer 1

You could do a get_class($e) and that will return the string representing the class name of the exception object then use that to compare in your switch.

Another option is to put a function that encapsulates the common functionality, and call it from each of the exception blocks. That way new, unexpected exceptions not in your switch can still percolate up. I’m a big fan of explicitly catching specific exceptions.