How do I log PHP errors in Lightsail?

Resolution

To log PHP errors in Lightsail, complete the following steps:

Locate the PHP configuration file

1. Use SSH to connect to Lightsail.

2. Locate the php.ini file:

   $ php -i | grep php.ini
   Configuration File (php.ini) Path => /opt/bitnami/php/lib
   Loaded Configuration File => /opt/bitnami/php/lib/php.ini

3. Open the file:

   vi /opt/bitnami/php/lib/php.ini

4. Edit the php.ini file to configure error directives based on your use case. Below are four common error directives:
   log_errors: activate this directive to turn on error logs.
   error_reporting: set to E_ALL to report all PHP errors.
   display_errors: activate to display errors in the browser during tests. It's a best practice to deactivate display_errors when your WordPress application is in production.
   error_log string: enter the location where you want to save the error logs. If log_errors is activated and error_log isn't defined, then errors are reported in the /opt/bitnami/apache2/logs/error_log file by default.
   Note: For more information as well as a full list of error directives, see Runtime configuration in PHP's official documentation.

5. To apply your changes, restart Bitnami:

   sudo /opt/bitnami/ctlscript.sh restart