$pdo->beginTransaction();
//...
$stmt = $pdo->prepare('INSERT INTO foo VALUES(:v1_1, :v1_2, :v1_3),
    (:v2_1, :v2_2, :v2_3),
    (:v2_1, :v2_2, :v2_3)');
$stmt->bindValue(':v1_1', $data[0][0]);
$stmt->bindValue(':v1_2', $data[0][1]);
$stmt->bindValue(':v1_3', $data[0][2]);
//...
$stmt->execute();

//or

$stmt = $pdo->prepare('INSERT INTO foo VALUES(:a, :b, :c)');
foreach($data as $item)
{
    $stmt->bindValue(':a', $item[0]);
    $stmt->bindValue(':b', $item[1]);
    $stmt->bindValue(':c', $item[2]);
    $stmt->execute();
}
//...
$pdo->commit();

PDO multiple inserts

mysql

PHP