php array_size自定义分页2022-01-13

/**
 * array_size自定义分页
 * @param $data
 * @param int $currentPage
 * @param int $perPage
 * @return array
 */
function get_page($data, $currentPage = 1, $perPage = 10)
{
    $totalItems = count($data);
    $currentPage = max(1, $currentPage);
    $offset = ($currentPage - 1) * $perPage;
    $totalPages = ceil($totalItems / $perPage);
    $pagedData = array_slice($data, $offset, $perPage);
    return [
        'totalItems' => $totalItems,
        'currentPage' => $currentPage,
        'perPage' => $perPage,
        'totalPages' => $totalPages,
        'data' => $pagedData
    ];
}

/**
 * 自定义分页利用array_slice函数对数组进行分页
 * @param $info  需要分页的数组
 * @param $page  当前页数
 * @param int $pageSize 每页条数
 * @return mixed
 */
function doPage($info, $page = 1, $pageSize = 10)
{
    $info = array_values((array)$info);
    $start = ($page - 1) * $pageSize;
    $data['total'] = count($info);
    $data['current_page'] = $page;
    $data['per_page'] = $pageSize;
    $data['last_page'] = ceil($data['total'] / $pageSize);
    $data['data'] = array_slice($info, $start, $pageSize);
    return $data;
}