thinkphp5+layui实现的分页样式示例

<?php
namespace think\paginator\driver;
use think\Paginator;
class Layui extends Paginator
{
  /**
   * 上一页按钮
   * @param string $text
   * @return string
   */
  protected function getPreviousButton($text = "上一页")
  {
    if ($this->currentPage() <= 1) {
      return $this->getDisabledTextWrapper($text);
    }
    $url = $this->url(
      $this->currentPage() - 1
    );
    return $this->getPageLinkWrapper($url, $text);
  }
  /**
   * 下一页按钮
   * @param string $text
   * @return string
   */
  protected function getNextButton($text = '下一页')
  {
    if (!$this->hasMore) {
      return $this->getDisabledTextWrapper($text);
    }
    $url = $this->url($this->currentPage() + 1);
    return $this->getPageLinkWrapper($url, $text);
  }
  /**
   * 页码按钮
   * @return string
   */
  protected function getLinks()
  {
    if ($this->simple)
      return '';
    $block = [
      'first' => null,
      'slider' => null,
      'last'  => null
    ];
    $side  = 3;
    $window = $side * 2;
    if ($this->lastPage < $window + 6) {
      $block['first'] = $this->getUrlRange(1, $this->lastPage);
    } elseif ($this->currentPage <= $window) {
      $block['first'] = $this->getUrlRange(1, $window + 2);
      $block['last'] = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
    } elseif ($this->currentPage > ($this->lastPage - $window)) {
      $block['first'] = $this->getUrlRange(1, 2);
      $block['last'] = $this->getUrlRange($this->lastPage - ($window + 2), $this->lastPage);
    } else {
      $block['first'] = $this->getUrlRange(1, 2);
      $block['slider'] = $this->getUrlRange($this->currentPage - $side, $this->currentPage + $side);
      $block['last']  = $this->getUrlRange($this->lastPage - 1, $this->lastPage);
    }
    $html = '';
    if (is_array($block['first'])) {
      $html .= $this->getUrlLinks($block['first']);
    }
    if (is_array($block['slider'])) {
      $html .= $this->getDots();
      $html .= $this->getUrlLinks($block['slider']);
    }
    if (is_array($block['last'])) {
      $html .= $this->getDots();
      $html .= $this->getUrlLinks($block['last']);
    }
    return $html;
  }
  /**
   * 渲染分页html
   * @return mixed
   */
  public function render()
  {
    if ($this->hasPages()) {
      if ($this->simple) {
        return sprintf(
          '<ul class="pager">%s %s</ul>',
          $this->getPreviousButton(),
          $this->getNextButton()
        );
      } else {
        return sprintf(
          '%s %s %s',
          $this->getPreviousButton(),
          $this->getLinks(),
          $this->getNextButton()
        );
      }
    }
  }
  /**
   * 生成一个可点击的按钮
   *
   * @param string $url
   * @param int  $page
   * @return string
   */
  protected function getAvailablePageWrapper($url, $page)
  {
    return '<a href="' . htmlentities($url) . '" rel="external nofollow" >' . $page . '</a>';
  }
  /**
   * 生成一个禁用的按钮
   *
   * @param string $text
   * @return string
   */
  protected function getDisabledTextWrapper($text)
  {
    return '<a class="layui-laypage-prev" >' . $text . '</a>';
  }
  /**
   * 生成一个激活的按钮
   *
   * @param string $text
   * @return string
   */
  protected function getActivePageWrapper($text)
  {
    return '<span class="layui-laypage-curr"> <em class="layui-laypage-em"></em><em>' . $text . '</em></span>';
  }
  /**
   * 生成省略号按钮
   *
   * @return string
   */
  protected function getDots()
  {
    return $this->getDisabledTextWrapper('...');
  }
  /**
   * 批量生成页码按钮.
   *
   * @param array $urls
   * @return string
   */
  protected function getUrlLinks(array $urls)
  {
    $html = '';
    foreach ($urls as $page => $url) {
      $html .= $this->getPageLinkWrapper($url, $page);
    }
    return $html;
  }
  /**
   * 生成普通页码按钮
   *
   * @param string $url
   * @param int  $page
   * @return string
   */
  protected function getPageLinkWrapper($url, $page)
  {
    if ($page == $this->currentPage()) {
      return $this->getActivePageWrapper($page);
    }
    return $this->getAvailablePageWrapper($url, $page);
  }
}