What's the performance impact of logging in #PHP? Is there an I/O difference between writing to `STDERR` or `STDOUT` vs. a local file on disk?
I've heard folks like @rasmus speak in the past about ensuring you don't have errors because, even if you have error logging set to `error_reporting(0);` (i.e., "off"), the error handler is still invoked, so there's still a tiny a perf. hit, but I'm curious about the I/O impact between the various log streams.
@ramsey From an academic point that seems an interesting question indeed!
From a performance point of view I'd say "when that is your problem, you got other problems"
/cc @rasmus