Re: [RFC Discussion] Catching multiple exception types

2016-03-09 12:52 GMT+01:00 Derick Rethans <derick@php.net>: > Hi! > > On Tue, 8 Mar 2016, Pierrick Charron wrote: > > > Bronisław Białek and I would like to start a discussion about allowing > > multiple exception types to be caught in a single catch statement. > > > > https://wiki.php.net/rfc/multiple-catch > > Would it not be better, to have your Exceptions extend a common base > class in this case? Or perhaps, which I think is even better, to have > your Exception classes implement a common interface that you can catch > against. That I believe should already work. > This assumes they're my exceptions and I can change the code. Doesn't work with libraries having not that good exception structures or even leaking their dependency's exceptions. > What you are asking PHP users to do with a multiple catch like this, is > to test in each catch's statement block to test for each class again. > No, usually it's enough that they're all extending Exception / Throwable. You just can't catch Exception / Throwable, because that would catch all exceptions. If you have a multi-catch, it doesn't matter which exception is thrown and it's never checked, otherwise you'd use two blocks directly. Regards, Niklas > Neither the inheritence or implements options from the previous > paragraph have that issue. > > cheers, > Derick >