This is essentially the same as these questions:


Nginx not logging PHP errors

BUT the answers there don't seem to be working on Ubuntu 16.04 with PHP 7.


catch_workers_output = yes
php_flag[display_errors] = on
php_admin_value[error_log] = /var/log/fpm-php.www.log
php_admin_flag[log_errors] = on

/var/log/fpm-php.www.log exists and is owned by www-data.


log_errors = On

Nginx Virtual Host's Server block

access_log /var/log/myapp/access.log;
error_log /var/log/myapp/error.log error;

/var/log/myapp/access.log exists and is owned by www-data.

But when an error occurs, I don't get an error in any of the specified log files, and can't find it in any other place either.

I went through all of the suggestions on the other question but didn't find any answer that worked. I'm assuming something has changed since those answer were posted. Any suggestions?

  • Try to see ini_get('log_errors') and ini_get('error_log'), maybe your app logs them to a custom location
    – the_nuts
    Feb 8, 2017 at 6:55
  • Create a simple file to display the output of phpinfo(), browse this file via browser, check the paths are correct, then remove the semicolon at the end of phpinfo(); to trigger an error. Feb 8, 2017 at 7:57
  • For Nginx related errors, please check for errors in the default file location in Ubuntu 16.04 that is /var/log/nginx/error.log. Feb 8, 2017 at 7:58

1 Answer 1


The comment above by the_nuts helped solve it for me. The directory and file didn't exist.

To diagnose, I added:

print("\n\n<br><br>log_errors: ".ini_get('log_errors'));
print("\n\n<br><br>error_log: ".ini_get('error_log'));

to the top of my code (a WordPress plugin). This outputted:

log_errors: 1
error_log: /usr/local/etc/php-fpm.d/fpm.log 

In terminal I used ls to learn the file and directory were missing, i.e.

ls /usr/local/etc/php-fpm.d/fpm.log
ls /usr/local/etc/php-fpm.d/


ls: cannot access '/usr/local/etc/php-fpm.d/fpm.log': No such file or directory
ls: cannot access '/usr/local/etc/php-fpm.d': No such file or directory

To fix: I changed directory to /usr/local/etc, created the directory, the file and then set the owner to www-data:www-data

cd /usr/local/etc
sudo mkdir php-fpm.d
cd php-fpm.d
sudo touch fpm.log
sudo chown -R www-data:www-data fpm.log

If the file and directory do exist, run

ls fpm.log -l

and if owner is root:

-rw-r--r-- 1 root root 0 Jun 23 19:52 fpm.log


sudo chown -R www-data:www-data fpm.log

to give the web server ownership and write access

-rw-r--r-- 1 www-data www-data 12848 Jun 23 20:07 fpm.log

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.