Zend Paginator Laravel Package

Getting Started

zend-paginator is a lightweight, standalone pagination component originally from Zend Framework (now Laminas). Despite being archived (as of 2019), it remains widely used and stable. To begin:

• Install via Composer: composer require laminas/laminas-paginator (note: the package was transferred to Laminas).
• If constrained to zendframework/zend-paginator, use composer require zendframework/zend-paginator (though migration to Laminas is strongly advised for support).
• First use: wrap any traversable data (array, iterator, database result set) in a Paginator object and assign a Scan or DbSelect adapter (or custom). For simple cases:

  $paginator = new Laminas\Paginator\Paginator(
      new Laminas\Paginator\Adapter\ArrayAdapter($data)
  );
  $paginator->setCurrentPageNumber($page);
  $paginator->setItemCountPerPage(10);
  

Implementation Patterns

• Adapter-Driven Flexibility: Use built-in adapters (ArrayAdapter, DbSelect, DbTableSelect) or implement AdapterInterface for custom sources (e.g., Elasticsearch, GraphQL).
• Lazy Loading: Pagination works with any traversable—ideal for large datasets loaded lazily (e.g., via doctrine hydration or cursor-based DB queries).
• Integration in MVC: In Laminas MVC or Symfony, integrate via service factories (e.g., PaginatorFactory) that inject adapters and page parameters from request.
• View Rendering: Use ->getPages() for partial rendering (pages, next/prev, ranges) and ->toArray() for JSON APIs. Templates typically loop foreach ($paginator as $item).
• Caching: Enable caching at adapter level (e.g., DbSelect caching via Zend\Db\ResultSet\ResultSet or custom caching in paginateItems()).

Gotchas and Tips

• No Active Development: Since archived, bugs or PHP 8.2+ deprecations won’t be patched—migrate to laminas/laminas-paginator immediately (same namespace, just Laminas\*).
• Adapter Caveats: DbSelect is powerful but requires manual SQL; for ORMs like Doctrine, avoid direct DB queries—implement a custom adapter that accepts a QueryBuilder and fetches count/offset separately.
• Performance: count() on large datasets can be slow. Always use count() caching or precompute totals (e.g., via separate SELECT COUNT(*)).
• Page Range Mismatch: If setItemCountPerPage(0) or negative, pagination breaks silently—validate inputs.
• Custom Page Numbering: Overriding setCurrentPageNumber() with non-integer values (e.g., strings) silently defaults to page 1; cast to int.
• Extension Points: Override Laminas\Paginator\Paginator::createItems() for custom item slicing (e.g., for cursor pagination). For full cursor-based pagination (e.g., ?cursor=abc), consider using a custom adapter or supplement with laminas/laminas-paginator’s LimitCount pattern.