Pdo V2.0 Extended Features -

| SQL Type | PHP Type | |----------|----------| | INT , SMALLINT | int | | DECIMAL , NUMERIC | string (or float with opt-in) | | BOOLEAN , BIT | bool | | DATE , DATETIME | DateTimeImmutable | | JSON , JSONB | array / stdClass |

$promise1 = $pdo->queryAsync("SELECT * FROM logs WHERE date = CURDATE()"); $promise2 = $pdo->queryAsync("UPDATE stats SET views = views + 1"); // Do other work...

use PDOQueryException; try $count = $pdo->fetchScalar( "SELECT COUNT(*) FROM users WHERE role = @role AND active = 1", ['role' => 'admin'] ); // returns int directly catch (PDOQueryException $e) $pdo->getQueryLog()->dump(); throw $e; pdo v2.0 extended features

| Method | Description | Example | |--------|-------------|---------| | fetchScalar() | Returns single column from first row | $count = $pdo->fetchScalar("SELECT COUNT(*) FROM users"); | | fetchSingle() | Returns first row as object/array | $user = $pdo->fetchSingle("SELECT * FROM users WHERE id = ?", [1]); | | fetchColumnDefault() | Returns column with type inference | $email = $pdo->fetchColumnDefault("SELECT email FROM users LIMIT 1"); |

$logs = $promise1->wait(); $stats = $promise2->wait(); PDO 2.0 automatically maps database column types to native PHP types based on schema metadata. | SQL Type | PHP Type | |----------|----------|

$stmt = $pdo->prepare("SELECT * FROM users WHERE id = :id AND status = :status"); $stmt->execute([':id' => 5, ':status' => 'active']);

// Auto-recognizes :named, ? and new @named style $result = $pdo->run("SELECT * FROM users WHERE id = @id AND status = @status", ['id' => 5, 'status' => 'active']); A major extension for high-throughput applications. PDO 2.0 introduces promise-like async execution. and new @named style $result = $pdo->run("SELECT *

Adopt PDO 2.0 for new projects and plan migration for legacy systems requiring high throughput or strict type handling. End of Report