[TYPO3-core] RFC #9355: Add an error and exception handler (backported from FLOW3)

[Rupert Germann]

Ernesto Baschny [cron IT] schrieb:
>> - added a param description for the new var $exceptionalErrors in
>> constructor of t3lib_error_ErrorHandler
> 
> I don't like that solution. Why do we then need a setExceptionalErrors()
> method then? If we call this later, this is never really applied, as it
> won't change the errors PHP handles as exception.
> 
> So I prefer my previous solution in that the error handler class itself
> does nothing on contruct and only if someone instructs it to handle
> errors (calling "setExceptionalErrors()") the error handler is put into
> place. Which means the error_handling can also be turned off on demand
> (by calling setExceptionalErrors(0) on the that object).

that makes sense. I'll revert it to your variant and change the comments 
accordingly.

...
> Exactly. The solution is much simpler than expected: add to the top of
> handleError():
> 
> 	if (error_reporting()==0) { return FALSE; }

great ;-)

> meaning the error that PHP has the instruction not to output anything
> (prepended by "@") won't also be handled by our handler.
> 
> After having this, we could also add E_WARNING to the list of default
> errors to handle, as it will then just handle warnings that we are not
> currently "ignoring".

yes. then all will work as before.

greets
rupert