$futures = []; foreach ($queries as $sql) $futures[] = $pdo->queryAsync($sql);
This is critical for frameworks that instantiate many unused services. Tests performed on PHP 8.3, MySQL 8.0, 10k queries: pdo v2.0 extended features
Extended feature: automatic health checks and retry logic for dead connections. Classic PDO required manual savepoint management. PDO v2.0 introduces a nested transaction API: $futures = []; foreach ($queries as $sql) $futures[]
A tiny but powerful feature: PDO now supports lazy connections. PDO v2
// Classic PDO – everything is a string $stmt = $pdo->query("SELECT id, price, is_active FROM products"); $row = $stmt->fetch(PDO::FETCH_ASSOC); // $row['id'] = "5" (string), $row['price'] = "19.99" (string) // PDO v2.0 – FETCH_TYPED preserves SQL types $stmt = $pdo->query("SELECT id, price, is_active FROM products"); $row = $stmt->fetch(PDO::FETCH_TYPED); // $row['id'] = 5 (int), $row['price'] = 19.99 (float), $row['is_active'] = true (bool)
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.
You can even run multiple queries concurrently: