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Request #52358 Improve error_log to be more helpful
Submitted: 2010-07-16 11:00 UTC Modified: 2021-07-14 14:40 UTC
Avg. Score:3.7 ± 0.9
Reproduced:2 of 2 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: andreas dot streichardt at globalpark dot com Assigned:
Status: Open Package: Scripting Engine problem
PHP Version: 5.3.2 OS:
Private report: No CVE-ID: None
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From: andreas dot streichardt at globalpark dot com
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 [2010-07-16 11:00 UTC] andreas dot streichardt at globalpark dot com
The error_log isn't really helpful in many cases when analyzing it. We have a 
very large application with memory_limits enabled and see memory_limit problems 
in some cases. This might be intended (misuse of the software, driving it at its 
limits) or an indicator of a bug.

However i can't see wether it is case a) or b):

PHP Fatal error:  Allowed memory size of XXX bytes exhausted (tried to allocate 
XX bytes) in (some random file) on line XX

"some random file" might give me a hint what the user was doing but in many cases 
there are framework/infrastructure files involved in this is not at all helpful. 
What would be helpful would be a stack trace or the request variables involved in 
the call (which might get huge on the downside).

Expected result:
PHPs error logs should be helpful in most cases.

Actual result:
Hard fatal errors in the error_log are not helpful at all.


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 [2021-03-14 14:26 UTC] olafvdspek at gmail dot com
A stack trace, like no uncaught exceptions, would certainly be nice.
 [2021-07-14 14:40 UTC]
The problem here is that doing more processing after memory_limit
was hit is likely going to require more memory.  This is why this
condition doesn't throw an Exception, but is a fatal error.
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