How can one ensure proper use of example domains in code to avoid potential legal issues?

To ensure proper use of example domains in code and avoid potential legal issues, it is important to only use example domains that are reserved for documentation purposes, such as example.com, example.org, or example.net. These domains are specifically designated for illustrative purposes and do not belong to any individual or organization. By using these reserved example domains, you can prevent inadvertently referencing a real domain that may be owned by someone else and potentially leading to legal issues.

// Bad practice: using a random domain in code
$url = 'https://randomdomain.com/page';

// Good practice: using a reserved example domain
$url = 'https://example.com/page';