php+ajax实现无刷新分页

本文实例讲述了php+ajax实现无刷新分页实现方法。分享给大家供大家参考。具体如下：

    limit 偏移量，长度;
    limit 0,7;   第一页
    limit 7,7;   第二页
    limit 14,7; 第三页
每页信息条数：7
信息总条数：select count(*) from table
信息总页数：ceil向上取整(总条数/每页条数)
1、分页类具体使用

<?php

class Pagination {

  private $total; //数据表中总记录数
  private $listRows; //每页显示行数
  private $limit; //mysql 数据库的limit
  private $uri; //分页信息前面的uri地址
  private $pageNum; //页数
  private $config = array('header' => "个记录", "prev" => "【上一页】", "next" => "【下一页】", "first" => "【首 页】", "last" => "【尾 页】");
  private $listNum = 8;

  /*
   * $total 当前信息总条数
   * $listRows 每页显示的条数
   * $pa 下面的page
    http://网址/index.php?page=5
   */

  public function __construct($total, $listRows = 10, $pa = "") {
    $this->total = $total;
    $this->listRows = $listRows;
    $this->uri = $this->getUri($pa);
    $this->page = !empty($_GET["page"]) ? $_GET["page"] : 1;//不传入page，则默认显示首页
    $this->pageNum = ceil($this->total / $this->listRows);
    $this->limit = $this->setLimit();
  }

  //设置每页显示的条数
  private function setLimit() {
    return "Limit " . ($this->page - 1) * $this->listRows . ", {$this->listRows}";
  }

  //获得URL地址
  private function getUri($pa) {
    $url = $_SERVER["REQUEST_URI"] . (strpos($_SERVER["REQUEST_URI"], '?') ? '' : "?") . $pa;

    $parse = parse_url($url);



    if (isset($parse["query"])) {
      parse_str($parse['query'], $params);
      unset($params["page"]);
      $url = $parse['path'] . '?' . http_build_query($params);
    }

    return $url;
  }

  //魔术方法，
  public function __get($args) {
    if ($args == "limit")
      return $this->limit;
    else
      return null;
  }

  //页面开始的条数
  private function start() {
    if ($this->total == 0)
      return 0;
    else
      return ($this->page - 1) * $this->listRows + 1;
  }

  //页面结束的条数
  private function end() {
    return min($this->page * $this->listRows, $this->total);
  }

  /*设置首页*/
  private function first() {
    $html = "";
    if ($this->page == 1)
      $html.='&nbsp;'.$this->config["first"].'&nbsp;';
    else
      $html.="&nbsp;<a href='javascript:void(0)' onclick='showPage(\"{$this->uri}&page=1\")'>{$this->config["first"]}</a>&nbsp;";
      //$html.="&nbsp;<a href='{$this->uri}&page=1'>{$this->config["first"]}</a>&nbsp;";

    return $html;
  }

  /*设置上一页*/
  private function prev() {
    $html = "";
    if ($this->page == 1)
      $html.='&nbsp;'.$this->config["prev"].'&nbsp;';
    else
      $html.="&nbsp;<a href='javascript:void(0)' onclick='showPage(\"{$this->uri}&page=" . ($this->page - 1) . "\")'>{$this->config["prev"]}</a>&nbsp;";
      //$html.="&nbsp;<a href='{$this->uri}&page=".($this->page-1)."'>{$this->config["prev"]}</a>&nbsp;";

    return $html;
  }

  //页码列表【首页】【2】【3】…………【尾页】
  private function pageList() {
    $linkPage = "";

    $inum = floor($this->listNum / 2);

    for ($i = $inum; $i >= 1; $i--) {
      $page = $this->page - $i;

      if ($page < 1)
        continue;

      $linkPage.="&nbsp;<a href='javascript:void(0)' onclick='showPage(\"{$this->uri}&page={$page}\")'>{$page}</a>&nbsp;";
    }

    $linkPage.="&nbsp;{$this->page}&nbsp;";


    for ($i = 1; $i <= $inum; $i++) {
      $page = $this->page + $i;
      if ($page <= $this->pageNum)
        $linkPage.="&nbsp;<a href='javascript:void(0)' onclick='showPage(\"{$this->uri}&page={$page}\")'>{$page}</a>&nbsp;";
      else
        break;
    }

    return $linkPage;
  }

  /*设置下一页*/ 
  private function next() {
    $html = "";
    if ($this->page == $this->pageNum)
      $html.='&nbsp;'.$this->config["next"].'&nbsp;';
    else
      $html.="&nbsp;<a href='javascript:void(0)' onclick='showPage(\"{$this->uri}&page=" . ($this->page + 1) . "\")'>{$this->config["next"]}</a>&nbsp;";
      //$html.="&nbsp;<a href='{$this->uri}&page=".($this->page + 1)."'>{$this->config["next"]}</a>&nbsp;";

    return $html;
  }

  /*设置尾页*/
  private function last() {
    $html = "";
    if ($this->page == $this->pageNum)
      $html.='&nbsp;'.$this->config["last"].'&nbsp;';
    else
      $html.= NKXLYXMMMXL
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