What are the best practices for setting cookies in PHP to ensure proper functionality?

When setting cookies in PHP, it is important to follow best practices to ensure proper functionality. This includes setting the cookie parameters correctly, such as the expiration time, path, domain, and secure flag. Additionally, it is recommended to sanitize any input data before setting it as a cookie to prevent security vulnerabilities.

// Set a cookie with proper parameters
setcookie('cookie_name', 'cookie_value', time() + 3600, '/', 'example.com', true, true);