The document is a troubleshooting guide by Joe Cartonia, a WordPress plugin and API developer. It provides detailed instructions on enabling error logging, debugging plugins, and locating log files necessary for resolving issues in WordPress. Additionally, it includes links to resources and tools for further assistance and community engagement.

1. Troubleshooting
By Joe Cartonia

2. About me
Name: Joe Cartonia
GitHub: https://github.com/cssjoe
Twitter: @joemotocss
I was born in Buffalo, living in Virginia Beach since 2007, and working as a WordPress
plugin and API developer for BoldGrid since 2014. I enjoy contributing to WordPress,
local Meetups, and the community.

3. Debugging in WordPress
https://wordpress.org/support/article/debugging-in-wordpress/
Enable error logging and displaying of errors:
Add in your wp-config.php file:
define( 'WP_DEBUG', true ); // Enable debugging.
define( 'WP_DEBUG_LOG', '/tmp/wp-errors.log' ); // Save errors to a specific log file.
define( 'WP_DEBUG_DISPLAY', false ); // For production sites or security.
define( 'SCRIPT_DEBUG', true ); // Enable web browser console debug logging.
define( 'SAVEQUERIES', true ); // Enable logging of all database queries; not for production.
Easily modified files:
https://wordpress.org/plugins/wp-file-manager/

4. Debugging Plugins
https://wordpress.org/plugins/query-monitor/
● PHP errors presented nicely along with their responsible component and call stack, and a visible warning in the
admin toolbar.
● HTTP API requests, with response code, responsible component, and time taken, with alerts for failed or erroneous
requests.
● Environment information, including detailed information about PHP, the database, WordPress, and the web server.
https://wordpress.org/plugins/simply-show-hooks/
● See hooks by displaying them in-line on wp-admin pages.
● Useful when trying to determine which hook or plugin is used when displaying markup.
https://wordpress.org/plugins/search/debug/

5. Checking Log Files
Typical log file locations (in Linux):
/var/log/httpd/error_log
/var/log/apache2/error_log
/etc/httpd/logs/error_log
/usr/local/apache/error_log
/opt/cpanel/ea-php71/root/usr/var/log/php-fpm/error.log
PHP error log files may be created in the directory in which a script generated an error, such as:
./error_log
./wp-admin/error_log
./wp-content/plugins/someplugin/includes/error_log
Locate error_log files easily at the command-line using find:
find . -type f -name error_log -ls

6. Thank you!
I would like to thank everyone for attending.
I am available on GitHub: https://github.com/cssjoe
This slideshow and others are available on SlideShare.net: https://www.slideshare.net/JoeCartonia
Please follow me on Twitter: @joemotocss