What steps can be taken to troubleshoot and debug PHP code that results in a white screen without any error messages?

When encountering a white screen in PHP without any error messages, it is likely a fatal error occurred that is being suppressed. To troubleshoot and debug this issue, you can enable error reporting in your PHP configuration or add the following line of code at the beginning of your PHP script:

```php
error_reporting(E_ALL);
ini_set('display_errors', 1);
```

This will display any errors or warnings that are occurring in your PHP code, helping you identify and fix the root cause of the white screen.