Re: Exceptions and Errors

Hello Adam, Tuesday, April 13, 2004, 10:52:01 PM, you wrote: > On Tue, 13 Apr 2004, George Schlossnagle wrote: >> > Is there a reason not to move non-continuable E_ERRORs to E_WARNINGs? >> > This prevents us from adding another severity level and also allows us >> > to make all E_ERRORs fatal in the process. >> >> This is a huge bc break. Raising the severity on non-continuable >> errors and throwing exceptions for E_ERRORs produces no bc issues. > I'm confused about the warning levels. I guess it's best if I talk > this out in an e-mail. :) > In PHP 4, E_ERROR is fatal. In PHP 5, E_ERROR is (currently) also > fatal. This always happens regardless of any exception handling. > With exceptions, we have the ability to modify E_ERRORs to be > non-fatal. Not at the moment. > However, even with exceptions, some errors should still be > considered fatal. > We have some choices: > 1) Promote those few "truly fatal" errors to something else, like > E_FATAL. Current E_ERRORs remain fatal, unless (now) caught by a > catch() block. > 2) Demote "recoverable E_ERRORS" to E_WARNING. Things that are E_ERROR > are always fatal regardless of exception handling. > 3) Something else, yet to be proposed. > I guess I'm confused about why some E_ERRORs are now able to be > handled in userland, but only by using exceptions. If these types of > errors are now recoverable, shouldn't we let the programmer decide how > they want to handle them? > -adam > -- > adam@trachtenberg.com > author of o'reilly's php cookbook > avoid the holiday rush, buy your copy today! -- Best regards, Marcus mailto:helly@php.net