Nginx – PHP-FPM output errors to be handled by php application with nginx

dockernginxPHPphp-fpm

I'm having difficulty setting up a docker container with phpfpm to defer error handling to my php application.

Any fatal exceptions are being processed by the xdebug stack trace (http://xdebug.org/docs/stack_trace) as 200 OK, however I want to have the errors handled by the php handler (I want to restructure the error as json, and set response code to 500).

If I set display_errors = Off in php.ini I get a code 500 which is good, but no error passed to the application layer (white screen of death).

For both cases above logging is working as intended.

To be clear, everything is functioning as normal (happy path is running fine) but when I intentionally cause a fatal error (It might happen in the future) I have issues.

How should I configure phpfpm/nginx to make sure the fatal errors are handled by the php application?

PHP-FPM config (dockerfile): https://github.com/nglume/docker-phpfpm/blob/master/Dockerfile

nginx config: https://github.com/nglume/docker-nginx/blob/master/config/nginx.conf

vhost: https://github.com/nglume/nglume/blob/master/vhosts/nginx/nglume-api.local.conf

Thanks!

Best Answer

Turns out the issue was a combination of phpfpm pool status php_flag[display_errors] was on and the lumen application did not have a registered handler for register_shutdown_function (it did have a set_error_handler set).

See https://laracasts.com/discuss/channels/lumen/lumen-debug-mode-not-showing-stack-trace for more info

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