Troubleshooting

General Troubleshooting Instructions

Some general instructions for debugging PHP and CodeIgniter-powered applications, such as Ilios.

Enable PHP error logging

In your php.ini file, set log_errors to On and specify a log file path (make sure this is in a writeable location!) via the error_log option.
E.g.

log_errors = On
error_log = "/tmp/phperrors.log

Restart your web server, then tail that log file.

Check the application log files

Check the log-*.php files for any error messages. They are located under application/logs ( Ilios 2.2+) or system/logs (Ilios 2.1.2 or older) in your webroot directory.

Turn on DB Debug mode

NOT RECOMMENDED FOR PRODUCTION SYSTEMS!

In your database configuration file (application/config/database.php or system/application/config/database.php, depending on your Ilios version), set the db_debug flag to TRUE.

<?php
// ...
$db['default']['db_debug'] = true;

This will enable the display of database errors messages. For more details on database configuration see the CodeIgniter User Guide.

Dealing with Login Problems

The following checklist pertains to the default authentication mechanism in Ilios.

1. Does the user account that you are trying to log in with exist?

• Make sure that there is enabled user account record in the user table with a corresponding record in the authentication table. Verify that the username value matches the user name that you are providing in the login form.

2. Make sure that your MySQL database is not running in "strict" mode. Check the MySQL online docs for how to detect and disable strict mode.