How can the EVA principle be applied to improve PHP code organization and readability?

Issue: The EVA principle (Entities, Value Objects, Aggregates) can be applied to improve PHP code organization and readability by clearly defining entities, value objects, and aggregates in the codebase. This helps in structuring the code in a more modular and maintainable way, making it easier to understand and extend. 

// Example of applying EVA principle in PHP code organization

// Define an entity class
class User {
    private $id;
    private $name;
    
    public function __construct($id, $name) {
        $this->id = $id;
        $this->name = $name;
    }
    
    // Getter methods
    public function getId() {
        return $this->id;
    }
    
    public function getName() {
        return $this->name;
    }
}

// Define a value object class
class Email {
    private $address;
    
    public function __construct($address) {
        $this->address = $address;
    }
    
    // Getter method
    public function getAddress() {
        return $this->address;
    }
}

// Define an aggregate class
class UserWithEmail {
    private $user;
    private $email;
    
    public function __construct(User $user, Email $email) {
        $this->user = $user;
        $this->email = $email;
    }
    
    // Getter methods
    public function getUser() {
        return $this->user;
    }
    
    public function getEmail() {
        return $this->email;
    }
}

Keywords

EVA principle PHP code organization readability functions libraries

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