Are there specific PHP frameworks or libraries that are recommended for building and maintaining online databases efficiently?

When building and maintaining online databases efficiently using PHP, it is recommended to use frameworks like Laravel or libraries like PDO (PHP Data Objects). These tools provide built-in features for database management, query building, and security measures to ensure data integrity and performance.

// Example using Laravel framework for database management
$users = App\Models\User::all();
foreach ($users as $user) {
    echo $user->name;
}

// Example using PDO for database connection and query execution
$pdo = new PDO('mysql:host=localhost;dbname=my_database', 'username', 'password');
$statement = $pdo->query('SELECT * FROM users');
while ($row = $statement->fetch(PDO::FETCH_ASSOC)) {
    echo $row['name'];
}