Pdo V2.0 Extended Features -

$pdo->setAttribute(PDO::ATTR_ASYNC, true); $stmt = $pdo->prepare('SELECT * FROM logs WHERE date > :date'); $stmt->bindParam(':date', $date); $stmt->executeAsync(); // non-blocking // later: $rows = $stmt->fetchAll(); // waits for completion

You can pass an array of server roles directly into the DSN configuration. PDO v2.0 automatically inspects the SQL string to determine whether it is a mutating command (INSERT, UPDATE, DELETE) or a safe read command (SELECT).

The "Extended Features" package is an optional component that requires to function correctly. It includes: pdo v2.0 extended features

$user = new User(); $user->email = 'john@example.com'; $user->name = 'John Doe';

: Utilize engine-unique operations like PostgreSQL Listen/Notify or MySQL-specific connection optimizations directly from the object. Code Example It includes: $user = new User(); $user->email =

For memory‑efficient iteration over large result sets, use :

PDO v2.0 natively exposes hooks conforming to the OpenTelemetry standard. Every statement preparation, execution, and transaction boundary automatically generates span data. This allows APM tools like Datadog, New Relic, or Jaeger to map the exact SQL execution lifecycle, complete with metadata like query string structures and row counts. SQL Query Tagging and Comments This allows APM tools like Datadog, New Relic,

One of the most significant architectural shifts in PDO v2.0 is the introduction of . In classic PDO, instantiating the PDO object created an immediate network connection to the database. This was problematic for frameworks where a request might never even query the DB.

Using this feature, a developer can launch multiple queries to the same or different databases without waiting for each to complete sequentially:

$metadata = [ 'theme' => 'dark', 'notifications' => ['email' => true, 'sms' => false], 'login_attempts' => 3 ]; $stmt = $pdo->prepare("INSERT INTO user_profiles (user_id, preferences) VALUES (:id, :prefs)"); $stmt->bindParam(':id', $userId, PDO::PARAM_INT); // Native JSON binding ensures proper driver-level escaping and binary storage $stmt->bindParam(':prefs', $metadata, PDO::PARAM_JSON); $stmt->execute(); Use code with caution.