I'm doing local development on a PHP project that is hosted in Heroku. I'm using Laravel Valet for my local environment, but it's not a Laravel project.
Heroku recommends writing to php://stderr.
When I execute this code...
$logger = new Logger('clever_name', [new StreamHandler('php://stderr')]);
$logger->critical('Critical');
...I can't figure out where the log is being written.
I've found two log files used by Valet:
~/.config/valet/Log/nginx-error.log~/.config/valet/Log/php-fpm.log
Calls to error_log() write to php-fpm.log. What is php://stderr writing to?
