Insert multiple rows with PDO prepared statements

Question

I would like to know if it is possible to insert multiple rows using one prepared statement. Below is an example of how I would normally insert one row into the db:

Answer 1

If your table is transactional (for example an InnoDB), you can use a Transaction to speed up your insertions. A transaction has also the advantage of roll backs.

$pdo = DB::getInstance();
$stmt = $pdo->prepare('INSERT INTO table VALUES (col1, col2, col3) VALUES (:val1, :val2, :val3)');

$pdo->beginTransaction();

// The queries are not executed yet, but pushed to a transaction "stack"
foreach ($values as $value) {
    $stmt->execute([
        ':val1' => $value['val1'],
        ':val2' => $value['val2'],
        ':val3' => $value['val3'],
    ]);
}

// Executes all the queries "at once"
$pdo->commit();