What are the benefits of using Data Access Objects (DAOs) in PHP for handling database queries in a browser game application?

When developing a browser game application in PHP, it is essential to separate the database query logic from the rest of the application code to improve maintainability and scalability. Data Access Objects (DAOs) provide a clean and structured way to handle database queries, making it easier to manage and update the database interactions in the future. 

// DAO class for handling database queries in a browser game application
class GameDAO {
    private $connection;

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

    public function getPlayerInfo($playerId) {
        $query = "SELECT * FROM players WHERE id = :playerId";
        $stmt = $this->connection->prepare($query);
        $stmt->bindParam(':playerId', $playerId);
        $stmt->execute();
        return $stmt->fetch();
    }

    public function updatePlayerScore($playerId, $newScore) {
        $query = "UPDATE players SET score = :newScore WHERE id = :playerId";
        $stmt = $this->connection->prepare($query);
        $stmt->bindParam(':playerId', $playerId);
        $stmt->bindParam(':newScore', $newScore);
        $stmt->execute();
    }
}

// Example of using the GameDAO class
$connection = new PDO("mysql:host=localhost;dbname=game_db", "username", "password");
$gameDAO = new GameDAO($connection);

// Get player information
$playerInfo = $gameDAO->getPlayerInfo(1);
echo "Player Name: " . $playerInfo['name'] . ", Score: " . $playerInfo['score'];

// Update player score
$gameDAO->updatePlayerScore(1, 100);

Keywords

Data Access Objects DAOs PHP database queries browser game application

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