In PHP, how do I paginate objects with SPL?

This example demonstrates how to paginate a collection of objects using PHP and SPL.

Keywords: pagination, SPL, PHP, objects, example

Description: This code snippet shows how to create a simple pagination system for an array of objects in PHP using the Standard PHP Library.


        <?php
        class PaginatedCollection implements IteratorAggregate {
            private $items;
            private $perPage;
            private $currentPage;

            public function __construct(array $items, int $perPage) {
                $this->items = $items;
                $this->perPage = $perPage;
                $this->currentPage = 1;
            }

            public function setCurrentPage(int $page) {
                $this->currentPage = max(1, $page);
            }

            public function getItemsForCurrentPage() {
                $offset = ($this->currentPage - 1) * $this->perPage;
                return array_slice($this->items, $offset, $this->perPage);
            }

            public function getTotalPages() {
                return ceil(count($this->items) / $this->perPage);
            }

            public function getIterator() {
                return new ArrayIterator($this->getItemsForCurrentPage());
            }
        }

        // Example usage
        $items = range(1, 100); // An example array with 100 items
        $collection = new PaginatedCollection($items, 10); // 10 items per page

        // Set current page to 3
        $collection->setCurrentPage(3);

        echo "<ul>";
        foreach ($collection as $item) {
            echo "<li>Item " . $item . "</li>";
        }
        echo "</ul>";
        echo "Page " . $collection->getCurrentPage() . " of " . $collection->getTotalPages();
        ?>

In PHP, how do I paginate objects with SPL?

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In PHP, how do I paginate objects with SPL?

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