Detailed explanation of laravel custom paging effect example-PHP Tutorial-php.cn

Detailed explanation of laravel custom paging effect example

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Release： 2023-03-19 20:58:02

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Laravel's pagination is very convenient, and it is actually quite easy to extend. Let's do an example below, extending the paginate() and simplePaginate() methods to implement our custom paging style, such as displaying "previous page" and "next page" instead of """ and """. Of course, if you master the expansion method, you can expand a paging you want without restraint, such as jumping to a certain page and displaying the total number of records in the paging. , the currently displayed record range and so on. . .

5.1 and 5.2 should be the same method. I am using the 5.2 version here. The documentation tells us that Paginator corresponds to the query builder and Eloquent's simplePaginate method, while LengthAwarePaginator is equivalent to the paginate method.

This article mainly introduces the laravel custom paging implementation code in detail. It has certain reference value. Interested friends can refer to it. I hope it can help everyone.

For laravel paging, it comes with a paginate method, which is very useful, but it also has limitations.

So I wrote my own paging for this. The specific code is as follows

<?php　　
namespace ...;

use ...;
/**
 * 自定义分页类，适合少数据的查询，多数据的时候不推荐
 * Class CustomPaginate
 * @package App\Tools\Paginate
 */
class CustomPaginate
{
  /**
   * 自定义数组分页
   * @param $data = 返回结果
   * @param $page
   * @param $limit
   * @return mixed
   */
  public static function paginate($data, $page = 1, $limit = 10)
  {
    if (!is_numeric($page) || !is_numeric($limit)) {
      return false;
    }
    $count = count($data);
    $data = array_slice($data, ($page - 1) * $limit, $limit);
    return new LengthAwarePaginator($data, $count, $limit, $page);
  }

  /**
   * 参数解释 对外暴露的方法
   * @param $data = array|collection 切记只支持这两种
   * @param $page = 当前页
   * @param $limit = 每一页展示几条
   * @return array|false
   * 返回结果为数组
   * 调用实例： CustomPaginate::paginateToArray($data, $request->page, $request->limit);
   */
  public static function paginateToArray($data, $page = 1, $limit = 10)
  {
    $isValidate = self::validate($data, $page, $limit);           //验证
    if ($isValidate === false) {
      return false;
    }

    $res = self::paginate($data, $page, $limit)->toArray();         //分页数据转换为数组

    //上一页 || 下一页 => path
　　　　　　if ($res[&#39;prev_page_url&#39;] != null) {
  　　　　　　$prev_page = $page - 1;
  　　　　　　$res[&#39;prev_page_url&#39;] = Paginator::resolveCurrentPath() . "?page=" . $prev_page . "&limit=" . $limit;
　　　　　　}
　　　　　　if ($res[&#39;next_page_url&#39;] != null) {
  　　　　　　$next_page = $page + 1;
  　　　　　　$res[&#39;next_page_url&#39;] = Paginator::resolveCurrentPath() . "?page=" . $next_page . "&limit=" . $limit;
　　　　　　}
    return $res;
  }

  /**
   * 验证参数是否合法
   */
  public static function validate(&$data, &$page = 1, &$limit = 10)
  {
    $page = empty($page) ? 1 : $page;
    $limit = empty($limit) ? 10 : $limit;
    if (!is_array($data) && !$data instanceof Collection) {
      return false;//"自定义分页方法只支持数组数据和集合数据";
    }
    if (!is_numeric($page) || !is_numeric($limit)) {
      return false;//"page limit 参数只支持数字";
    }
    if ($data instanceof Collection) {
      return $data = $data->toArray();
    }
    return $data;
  }

}

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