How can PHP scripts be optimized to abstract status codes and commands for better functionality and performance in web applications?

To optimize PHP scripts for better functionality and performance in web applications, status codes and commands can be abstracted into separate functions or classes. This abstraction helps in improving code readability, reusability, and maintainability. By encapsulating status codes and commands, it becomes easier to make changes or updates in the future without affecting the entire codebase.

// Define a class to abstract status codes and commands
class StatusCode {
    const SUCCESS = 200;
    const ERROR = 400;
}

// Define a class to abstract commands
class Command {
    const CREATE = 'create';
    const UPDATE = 'update';
    const DELETE = 'delete';
}

// Usage example
$status = StatusCode::SUCCESS;
$command = Command::CREATE;