My question is, is there a way to enable some PHP configuration that would
output more verbose information, such as a backtrace or the URL attempted?
In our PHP error log, we have the usual semi-useful information. However
this is only a partial story as it's hard to re-create the URL that caused
the error. In the first Actor example, yeah actor_id 2206 doesn't exist and
so now I have put a try/catch on all pages that have "new Actor($actor_id)"
but it doesn't tell me WHY this is happening. How did someone get to this
point? I doubt they just randomly picked '2206' which happens to be one of
only a handful of actually missing actors out of 100k. Sure I guess it could
be a bot that sequentially tried them all, but this is not likely since we
have SEO style URLs and so we re-map an actor name back to the ID. So the
bot would have to try NAMEs not IDs. This means we must have some link
somewhere that points to this. Same with the common foreach() warnings
below. Yeah, the array being passed is empty/null. Sure I can check the
array before doing the foreach() or even @foreach() but that doesn't tell me
the root cause. What video are they trying to access that has no scenes or
invalid actors?
We do NOT have apache logging turned on as we get 30,000 hits per second and
it would be too expensive. I only care about PHP errors like this. And the
apache error log (which we do have enabled) doesn't have useful info related
to these kinds of issues as they're really not apache's problem. That log
only deals with missing files/images/pages/etc.
[28-Feb-2012 13:43:19 UTC] PHP Fatal error: Uncaught exception
'ObjectNotFound' with message 'There is no such object Actor [2206].' in
/home/SHARED/classes/base.class.php:103
Stack trace:
#0 /home/SHARED/classes/actor.class.php(61): Base->load_from_sql()
#1 /home/m.videosz.com/browse_scenes.php(89): Actor->__construct(2206)
#2 {main}
thrown in /home/SHARED/classes/base.class.php on line 103
[28-Feb-2012 10:54:01 UTC] PHP Warning: Invalid argument supplied for
foreach() in /home/m.dev.com/scene.php on line 138
[28-Feb-2012 07:22:50 UTC] PHP Warning: Invalid argument supplied for
foreach() in /home/SHARED/classes/scene.class.php on line 423
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