How can a transition from procedural MySQL-based code to object-oriented PHP programming be effectively managed to improve code readability and maintainability?

Transitioning from procedural MySQL-based code to object-oriented PHP programming can be effectively managed by breaking down the existing code into smaller, reusable components, creating classes to represent different entities and functionalities, and utilizing design patterns such as MVC (Model-View-Controller) to separate concerns. This approach not only improves code readability and maintainability but also allows for easier testing and future enhancements. 

// Example code snippet demonstrating the transition from procedural MySQL-based code to object-oriented PHP programming

// Procedural MySQL-based code
$connection = mysqli_connect('localhost', 'username', 'password', 'database');
$query = "SELECT * FROM users";
$result = mysqli_query($connection, $query);
while ($row = mysqli_fetch_assoc($result)) {
    echo $row['name'] . "<br>";
}
mysqli_close($connection);

// Object-oriented PHP programming
class Database {
    private $connection;

    public function __construct($host, $username, $password, $database) {
        $this->connection = new mysqli($host, $username, $password, $database);
    }

    public function query($query) {
        return $this->connection->query($query);
    }

    public function close() {
        $this->connection->close();
    }
}

class User {
    private $db;

    public function __construct(Database $db) {
        $this->db = $db;
    }

    public function getAllUsers() {
        $query = "SELECT * FROM users";
        $result = $this->db->query($query);
        while ($row = $result->fetch_assoc()) {
            echo $row['name'] . "<br>";
        }
    }
}

// Usage
$db = new Database('localhost', 'username', 'password', 'database');
$user = new User($db);
$user->getAllUsers();
$db->close();

Keywords

MySQL object-oriented programming PHP code readability maintainability

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