Re: [RFC] Stream Error Handling Improvements

Hi Jakub, On Tue, Nov 18, 2025 at 7:39 PM Jakub Zelenka <bukka@php.net> wrote: > > Hello, > > I would like to introduce a new stream error handling RFC that is part of my stream evolution > work (PHP Foundation project funded by Sovereign Tech Fund) : > > https://wiki.php.net/rfc/stream_errors > > Kind regards, > > Jakub Thank you for working on this. The RFC doesn't specify when exactly the error_handler is invoked (especially in case of non-fatal errors). Is it as soon as the error happens, or are invocations batched at the end of the operation? The reason I'm asking is because there is a long track of bugs related to the global error handler [1], and it's likely that the error_handler proposed here could suffer from the same issues. For example the error_handler can reenter the operation being performed, or change the state of the stream. For safety and simplicity, I would suggest that error_handler calls are delayed until just before returning to user code. [1] https://github.com/php/php-src/issues/20018 Best Regards, Arnaud