Is Blesta Catching Php Error Logging?

[will]

I'm trying to modify a module. There's a bug somewhere in it that's causing some kind of PHP error, rendering a 500 internal server error from nginx. However, there's no error in my php error log, making debugging exceedingly difficult. I've confirmed that logging works normally (e.g. if I write a simple php file with a syntax error).

 

Is Blesta intercepting PHP errors? Is it logging them anywhere?

[Cody]

Turn error reporting to -1

 

in /config/blesta.php:

 

Configure::errorReporting(-1);

[Tyson]

500 internal server errors preceed php's error handling. You should check your webserver logs for more info.

[will]

Yes, as I said, it's not getting logged. Nothing to /var/log/nginx/access.log, /var/log/nginx/error.log, nor /var/log/nginx/php_errors.log, all of which I've confirmed normally receive logging output.

 

For example, if I visit a php page consisting of

<?php throw new Exception('Noooooo!'); ?>

I get

2014/08/26 11:48:17 [error] 19912#0: *83 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught exception 'Exception' with message 'Nooooo!' in /var/www/error.php:1
Stack trace:
#0 {main}
  thrown in /var/www/error.php on line 1" while reading response header from upstream, client: x.x.x.x, server: mydomain.com, request: "GET /error.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mydomain.com"

After doing further research, it looks like Fatal errors bypass normal error handling. I thought perhaps this was the case here, so I made another error file.

<?php throw_error("Nooo!", E_USER_ERROR); ?>

but no luck; I still got a logged error.

2014/08/26 11:52:22 [error] 19912#0: *90 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Nooo! in /var/www/error.php on line 1" while reading response header from upstream, client: x.x.x.x, server: mydomain.com, request: "GET /error.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mydomain.com"

I turned display_errors on. For my fatal error, I get

Fatal error: Nooo! in /var/www/error.php on line 1

However, for https://mydomain.com/index.php/admin/settings/company/modules/available/ I still get a blank page and nothing in the error log. I assume this means I have the wrong sort of Fatal error due to third-party documentation like http://blog.elijaa.org/index.php?post/2010/04/20/Handling-fatal-error-in-PHP-with-register_shutdown_function which describes the blank page I'm stuck with. Right now I'm trying to hunt down other ways to replicate this error. 

[will]

Aha! That's exactly what it was. Thank you kindly.