Pdo - V2.0 Extended Features _hot_

You can even run multiple queries concurrently:

For nearly two decades, PHP Data Objects (PDO) has been the gold standard for database interaction in PHP. It provided a lightweight, consistent interface for accessing various database systems. However, as PHP evolved toward a more type-safe, performant, and developer-friendly ecosystem, the original PDO began showing its age.

#[MapTo(table: 'users')] class User { public function __construct( public int $id, public string $email, public DateTime $created_at ) {} } // Fetch directly into typed DTO $stmt = $pdo->prepare("SELECT id, email, created_at FROM users WHERE id = ?"); $user = $stmt->execute([1])->fetchObject(User::class); // No hydration logic needed – PDO v2.0 maps column names to constructor parameters pdo v2.0 extended features

$pdo->enableDebug(function(string $sql, array $params, float $executionTime, ?string $error) if ($executionTime > 100) // milliseconds logger->warning("Slow query: $sql", ['params' => $params, 'time' => $executionTime]); if ($error) logger->error("Query failed: $error", ['sql' => $sql]); ); This extended feature also captures stack traces, making it easier to locate where slow queries originate. PHP 8.1 introduced Fibers, and PDO v2.0 leverages them for non-blocking database calls — a game-changer for high-concurrency applications.

$futures = []; foreach ($queries as $sql) $futures[] = $pdo->queryAsync($sql); You can even run multiple queries concurrently: For

$pdo = new PDO('mysql:host=db', 'user', 'pass', [ PDO::ATTR_LAZY_CONNECT => true ]); // No connection made yet! $pdo->query("SELECT 1"); // Only now connects

$pool = new PDOConnectionPool('mysql:host=localhost;dbname=test', 'user', 'pass', [ 'min_connections' => 5, 'max_connections' => 20, 'idle_timeout' => 300 ]); // Acquire a connection from the pool $pdo = $pool->get(); $stmt = $pdo->prepare("SELECT * FROM users"); $pool->put($pdo); // return to pool $pdo->query("SELECT 1"); // Only now connects $pool =

try $pdo->prepare("INSERT INTO users (id) VALUES (?)")->execute([null]); catch (PDOException $e) echo $e->getMessage(); // "SQLSTATE[23000]: Integrity constraint violation" echo $e->getDetailedInfo(); // "Column 'id' cannot be null. Query: INSERT INTO users (id) VALUES (?) → Parameters: [null]"