How Can I Make CodeIgniter Display Error Messages Instead of Blank Pages?

Error Handling in CodeIgniter: Displaying Error Messages Instead of Blank Pages

In CodeIgniter, whenever an error or exception occurs, by default, a blank page is displayed instead of helpful error messages. This can make debugging challenging. Fortunately, there are several options to display PHP error messages and resolve this issue.

One solution is to explicitly instruct PHP to show errors using the ini_set function:

ini_set('display_errors', 1);

This configuration setting forces PHP to display all errors, including those that might have been suppressed by certain environments.

Another approach is to modify the error reporting settings in CodeIgniter's index.php file. Add the following code snippet to the ENVIRONMENT section of index.php:

if (defined('ENVIRONMENT')) {
    switch (ENVIRONMENT) {
        case 'development':
            ...
            // Display errors in output
            ini_set('display_errors', 1);
            break;
    }
}

This code ensures that error messages are displayed during development, while hiding them in production or testing environments.

As a last resort, you can try to set the error_reporting level to E_ALL in your PHP configuration. This setting instructs PHP to report all possible errors.

By following these steps, you can enable PHP error messages in CodeIgniter, making debugging and troubleshooting much easier.

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