Re: Which Exception to use ....

Pavel schreef:

//sorry for my english Firstly, this list of exception show only registered in system exceptions,

yes I know, I wrote exactly that in the first line of my post.

which (excluding one-two) are exceptions of some php mobules:mysqli,sqllite and so on...

it's 5 actually, I mentioned that also.

I use only Exception class and my extends on it (so and exceptions from your list are extends...).

yes, I know. they have to, it's an engine requirement, if you STW you can even find a class heirarchy diagram that documents them. the point is I'm writing a small site/app and I can't be arsed to write a stack of custom Exceptions and an autoloader etc because it's too much hassle for the simplistic nature of what I'm putting together ... so I figured I'd use built-in exceptions where I can because being able to differentiate certain 'types' of exception is quite handy, making everything a plain Exception is rather blunt (rather like doing surgery with a spoon). ... which is where my original question(s) come in. personally I find the built-ins rather useless unless you fancy being super pendantic with your exceptions (UnderflowException anyone?!?), seems the built-in exceptions don't really cover (m)any general situations. maybe a missing config file should be a RunTimeException ... still leaves the questions as to what a DomainException and a ErrorException is meant to model.