thinkPHP分页功能实例详解

<?php
/**
 * interfaceservice
 * @author yhd
 */
namespace red;
interface serviceinterface {
  /**
   * 实例化当前类
   */
  public static function getinstance();
}

<?php
/**
 * 静态服务类
 * staticservice
 * @author yhd
 */
namespace red;
class staticservice{
  protected static $data;
  /**
   * 设置静态数据
   * @param string $key key
   * @param mixed $data data
   * @return mixed
   */
  public static function setdata($key,$data){
    self::$data[$key] = $data;
    return self::$data[$key];
  }
  /**
   * 通过引用使用静态数据
   * @param string $key key
   * @return mixed
   */
  public static function & getdata($key){
    if(!isset(self::$data[$key])){
      self::$data[$key] = null;
    }
    return self::$data[$key];
  }
  /**
   * 缓存实例化过的对象
   * @param string $name 类名
   * @return 对象
   */
  public static function getinstance($name){
    $key = 'service_@_'.$name;
    $model = &self::getdata($key);
    if($model === null){
      $model = new $name();
    }
    return $model;
  }
  /**
   * html转义过滤
   * @param mixed $input 输入
   * @return mixed
   */
  public static function htmlfilter($input){
    if(is_array($input)) {
      foreach($input as & $row) {
        $row = self::htmlfilter($row);
      }
    } else {
      if(!get_magic_quotes_gpc()) {
        $input = addslashes($input);
      }
      $input = htmlspecialchars($input);
    }
    return $input;
  }
}

<?php
/**
* 抽象商品管理类
* abproduct.class.php
* @lastmodify 2015-8-17
* @author yhd
*/
namespace red\product;
abstract class abproduct{
  public $errornum;
  /*
  *返回错误信息
  *@param $errornum 错误代码
  */
  public function getstatus(){
    $errornum = $this->errornum;
    switch($errornum){
        case 0:
            $data['status'] = 0;
            $data['message'] = '收藏成功';
            break;
        case 1:
            $data['status'] = 1;
            $data['message'] = '收藏失败';
            break;
        case 2:
            $data['status'] = 2;
            $data['message'] = '已收藏';
            break;
        case 3:
            $data['status'] = 3;
            $data['message'] = '未登陆';
            break;
        case 4:
            $data['status'] = 4;
            $data['message'] = '缺少参数';
            break;
        default:
            $data['status'] = 200;
            $data['message'] = '未知错误';
    }
    return $data;
  }

<?php
/**
* 会员模型
* membermodel.class.php
* @copyright (c) 2014-2015 red
* @license http://www.red.com/
* @lastmodify 2015-8-17
* @author yhd
*/
namespace red\passport\models;
use think\model;
use red\serviceinterface;
use red\staticservice;
class membermodel extends model implements serviceinterface{
  protected $userid;
  protected $error;
  protected function _initialize(){
    $this->userid = getuserinfo(0);
  }
   /**
   * 实例化本类
   * @return membermodel
   */
  public static function getinstance() {
    return staticservice::getinstance(__class__);
  }
   /**
   *  获取登录用户信息
   * @param string  $data 查询条件
   * @return array
   */
  public function getuser($data = '') {
    if(empty($data)){
      return $this->where("id=".$this->userid)->find();
    }else{
      return $this->field($data)->where("id=".$this->userid)->find();
    }
  }
  /**
   * 修改用户信息
   * @param array $data
   * @param array $where 查询条件
   */
  public function edituserinfo($data, $where = '') {
    if( $this->_before_check($data) === false ){
      return $this->error['msg'];
    }
    if(!empty($where) && is_array($where)){
      $condition[ $where[0] ] = array('eq', $where[1]);
      return $this->where($condition)->save($data);
    }
    return $this->where("id=".$this->userid)->save($data);
  }
  /**
   * 获取用户信息
   * @param string $data 用户名
   * return array()
   */
  public function checkuserinfo($str, $field = ''){
    //注册类型
    $info = checktype($str);
    $condition[$info] = array('eq',$str);
    if(!empty($field)){
      return $this->field($field)->where($condition)->find();
    }
    return $this->where($condition)->find();
  }
  /**
   * 获取用户信息
   * @param array $data 用户名
   * return array()
   */
  public function getaccount($data){
    //注册类型
    $info = checktype($data);
    $condition['id'] = array('eq',$this->userid);
    $condition[$info] = array('eq',$data);
    return $this->where($condition)->find();
  }
  /**
   * 修改用户密码
   * @param array $data['id']用户id
   * @param $data['password']用户密码
   * return true or false
   */
  public function upuserpassbyid($data){
    $condition['id'] = array('eq',$data['id']);
    $status = $this->where($condition)->save(array("password"=>md5($data['password'])));
    if($status){
        return true;
    }else {
        return false;
    }
  }
  /**
   * 校验用户的账号或者密码是否正确
   * @param $data['username'] 用户名
   * @param $data['password'] 密码
   * return true or false
   */
  public function checkuserpasswd($data= array()){
      $type = checktype($data['username']);
      $condition[$type] = array('eq',$data['username']);
      $condition['password'] = array('eq',md5($data['password']));
       return $this->where($condition)->find();
  }
  /**
   * 网页登录校验token
   * @param token string
   * return bool
   */
  public function checktoken($token){
      return $this->autochecktoken($token);
  }
  /**
   * 后台封号/解封
   * param int $user_id
   */
  public function changestatus($data){
    if($this->save($data)){
      return true;
    }else{
      return false;
    }
  }
  protected function _before_check(&$data){
    if(isset($data['username']) && empty($data['username'])){
      $this->error['msg'] = '请输入用户名';
      return false;
    }
    if(isset($data['nickname']) && empty($data['nickname'])){
      $this->error['msg'] = '请输入昵称';
      return false;
    }
    if(isset($data['realname']) && empty($data['realname'])){
      $this->error['msg'] = '请输入真名';
      return false;
    }
    if(isset($data['email']) && empty($data['email'])){
      $this->error['msg'] = '请输入邮箱';
      return false;
    }
    if(isset($data['mobile']) && empty($data['mobile'])){
      $this->error['msg'] = '请输入手机号码';
      return false;
    }
    if(isset($data['password']) && empty($data['password'])){
      $this->error['msg'] = '请输入密码';
      return false;
    }
    if(isset($data['headimg']) && empty($data['headimg'])){
      $this->error['msg'] = '请上传头像';
      return false;
    }
    return true;
  }
}

<?php
/**
* 商品模型
* productmodel.class.php
* @lastmodify 2015-8-17
* @author yhd
*/
namespace red\product\models;
use think\model;
use red\serviceinterface;
use red\staticservice;
class productmodel extends model implements serviceinterface{
  /**
   * 实例化本类
   * @return productmodel
   */
  public static function getinstance() {
    return staticservice::getinstance(__class__);
  }
  /**
   * 单个商品
   * @param string $id
   * @param integer $status 状态 1:有效 2:无效
   * @param integer $onsale 是否上架 1:是 2:否
   * @return array 一维数组
   */
  public function getproone($id, $status = 1 , $onsale = 1){
    $condition['onsale'] = array('eq', $onsale); //是否上架
    $condition['status'] = array('eq', $status); //状态
    $condition['id'] = array('eq',$id);
    return $this->where($condition)->find();
  }
  /**
   * 商品列表
   * @param string $limit 查询条数
   * @param array $data 查询条件
   * @return array 二维数组
   */
  public function getprolist($data = ''){
    $condition['onsale'] = array('eq', $data['onsale']); //是否上架
    $condition['status'] = array('eq', $data['status']); //状态
    $condition['type'] = array('eq', $data['type']);  //分类
    if(isset($data['limit']) && isset($data['order']) ){
      $return =$this->where($condition)->limit($data['limit'])->order($data['order'])->select();
    }else{
      $return =$this->where($condition)->select();
    }
    return $return;
  }
  /**
   * 添加商品
   * @param array $data
   * @return int
   */
  public function addproduct($data){
    return $this->add($data);
  }
  /**
   * 删除商品
   *
   */
  public function delproduct($id){
    $condition['id'] = array('eq', $id);
    return $this->where($condition)->delete();
  }
  /**
   * 修改商品
   * @param string|int $id
   * @param array $data
   * @return
   */
  public function editprodcut($id, $data){
    $condition['id'] = array('eq', $id);
    return $this->where($condition)->save($data);
  }
  public function getproductinfo($product){
    if(empty($product) || !isset($product['product_id'])){
      return array();
    }
    $info = $this->getproone($product['product_id']);
    $product['name'] = $info['name'];
    $product['store_id'] = $info['store_id'];
    $product['price'] = $info['price'];
    $product['m_price'] = $info['m_price'];
    return $product;
  }
}

<?php
　　namespace user\controller;
　　use red\product\productmanage;
　　class favoritecontroller extends authcontroller {
　　public function index($page=1){
　　　　$limit=1;
　　　　$list = productmanage::getinstance()->getcollectlist($page,$limit);
　　　　$showpage = create_pager_html($list['total'],$page,$limit);
　　　　$this->assign(get_defined_vars());
　　　　$this->display();
　　}
　　public function cancelcollect(){
　　　　$ids = field('ids');
　　　　$return = productmanage::getinstance()->cancelproductcollect($ids);
　　　　exit(json_encode($return));
　　}
}

<?php
/**
 * 分页
 * @param $total 总条数
 * @param $page 第几页
 * @param $perpage 每页条数
 * @param $url 链接地址
 * @param $maxpage 最大页码
 * @return string 最多页数
*/
function create_pager_html($total, $page = 1, $perpage = 20, $url = '', $maxpage = null) {
  $totalcount = $total;
  if (empty($url) || !is_string($url)) {
    $url = array();
    foreach ($_get as $k => $v) {
      if ($k != 'page') {
        $url[] = urlencode($k) . '=' . urlencode($v);
      }
    }
    $url[] = 'page={page}';
    $url = '?' . implode('&', $url);
  }
  if ($total <= $perpage)
    return '';
  $total = ceil($total / $perpage);
  $pagecount = $total;
  $total = ($maxpage && $total > $maxpage) ? $maxpage : $total;
  $page = intval($page);
  if ($page < 1 || $page > $total)
    $page = 1;
    $pages = '<div class="pages"><a href="' . str_replace('{page}', $page - 1 <= 0 ? 1 : $page - 1, $url) . '" rel="external nofollow" title="上一页" class="page_start">上一页</a>';
  if ($page > 4 && $page <= $total - 4) {
    $mini = $page - 3;
    $maxi = $page + 2;
  } elseif ($page <= 4) {
    $mini = 2;
    $maxi = $total - 2 < 7 ? $total - 2 : 7;
  } elseif ($page > $total - 4) {
    $mini = $total - 7 < 3 ? 2 : $total - 7;
    $maxi = $total - 2;
  }
  for ($i = 1; $i <= $total; $i++) {
    if ($i != $page) {
      $pages .= '<a class="page-num" href="' . str_replace('{page}', $i, $url) . '" rel="external nofollow" >' . $i . '</a>';
    } else {
      $pages .= '<span class="page_cur">' . $i . '</span>';
    }
    if ($maxi && $i >= $maxi) {
      $i = $total - 2;
      $maxi = 0;
    }
    if (($i == 2 or $total - 2 == $i) && $total > 10) {
      $pages .= '';
    }
    if ($mini && $i >= 2) {
      $i = $mini;
      $mini = 0;
    }
  }
  $pages .= '<a href="' . str_replace('{page}', $page + 1 >= $total ? $total : $page + 1, $url) . '" rel="external nofollow" title="下一页" class="page_next">下一页</a><span class="pageop"><span class="sum">共' . $totalcount .
      '条 </span><input type="text" class="pages_inp" id="pageno" value="' . $page . '" onkeydown="if(event.keycode==13 && this.value) {window.location.href=\'' . $url . '\'.replace(/\{page\}/, this.value);return false;}"><span class="page-sum">/ ' .
      $total . '页 </span><input type="button" class="pages_btn" value="go" onclick="if(document.getelementbyid(\'pageno\').value>0)window.location.href=\'' . $url . '\'.replace(/\{page\}/, document.getelementbyid(\'pageno\').value);"></span></div>';
  return $pages;
}