How to paginate data in Symfony applications?

In Symfony applications, pagination can be easily implemented using the KnpPaginatorBundle. Here are the steps to paginate data in Symfony applications:

Install the KnpPaginatorBundle via Composer by running the following command in the terminal:

composer require knplabs/knp-paginator-bundle

Enable the bundle in your Symfony application by adding it to the config/bundles.php file:

Knp\Bundle\PaginatorBundle\KnpPaginatorBundle::class => ['all' => true],

Configure the bundle by adding the following configuration to your config/packages/knp_paginator.yaml file:

knp_paginator:
    page_range: 5 # Number of pages displayed in the pagination
    default_options:
        page_name: page
        sort_field_name: sort
        sort_direction_name: direction
        distinct: true
    template:
        pagination: '@KnpPaginator/Pagination/twitter_bootstrap_v4_pagination.html.twig'
        sortable: '@KnpPaginator/Pagination/twitter_bootstrap_v4_sortable_link.html.twig'

Use the paginator service in your controller to paginate the data. For example, you can use the following code in your controller action:

$entityManager = $this->getDoctrine()->getManager();
$query = $entityManager->getRepository(Product::class)->createQueryBuilder('p')->getQuery();

$paginator = $this->get('knp_paginator');
$pagination = $paginator->paginate(
    $query,
    $request->query->getInt('page', 1),
    10 // Number of items per page
);

return $this->render('product/index.html.twig', [
    'pagination' => $pagination,
]);

Render the pagination in your template by using the knp_pagination_render function. For example, you can use the following code in your template:

{{ knp_pagination_render(pagination) }}

With these steps, you should be able to paginate data in your Symfony application using the KnpPaginatorBundle.