$data = [
0 => ['id' => 1, 'name' = 'abc'],
1 => ['id' => 2, 'name' = 'zxy']
];
$sql = 'insert into table (id, name) values (:id, :name);
// $sql = 'insert into table (id, name) values (?, ?); // неименованными
$res = $pdo->prepare($sql);
foreach ($data as $item) {
$res->execute($item);
}