Show Detailed Error when Moodle show blank page

One of the customer is facing blank page when they are using Moodle application but they can’t find a way to show the error from Apache error_log.

After search around from the Internet, it is found out Moodle used their custom PHP ini_set function to define the PHP value.

In order to show the detailed error which got from Moodle, simply add the following code to the config.php file.

ini_set ('display_errors', 'on');
ini_set ('log_errors', 'on');
ini_set ('display_startup_errors', 'on');
ini_set ('error_reporting', E_ALL);

Now, browse to your page again and you should see the detailed error by now.