What are the best practices for querying a database in PHP using PDO or MySQLi while avoiding mixing deprecated and modern database interfaces?

When querying a database in PHP, it's important to avoid mixing deprecated and modern database interfaces like PDO and MySQLi to ensure code consistency and maintainability. To achieve this, it's recommended to choose one database interface and stick with it throughout the project. If you're using PDO, make sure to use prepared statements for secure querying. 

// Using PDO for querying a database in PHP
try {
    $pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $stmt = $pdo->prepare("SELECT * FROM users WHERE id = :id");
    $stmt->bindParam(':id', $id, PDO::PARAM_INT);
    $stmt->execute();

    $result = $stmt->fetch(PDO::FETCH_ASSOC);
    
    // Process the result here

} catch (PDOException $e) {
    echo "Error: " . $e->getMessage();
}

Keywords

PDO MySQLi database querying deprecated interfaces modern interfaces

Related Questions