PHP+Mysql无刷新问答评论系统(源码)

自己写的一个评论系统源码分享给大家，包括有表情，还有评论机制。用户名是随机的

针对某一篇文章进行评论

    function subcomment() { 
      $data['uid'] = getUserid(); 
      $data['mtype'] = I("post.mtype", 0, 'int'); 
      if ($data['uid'] == '') { 
        echo json_encode(array("code" => -1)); 
      } else { 
        $content = addslashes(str_replace("\n", "<br />", $_POST['content'])); 
        $data['tid'] = I("post.id", 0, 'int'); //文章id 
        if (strlen(preg_replace('/\[ [^\)]+? \]/x', '', $content)) < 10) { 
          echo json_encode(array("code" => "short than 10", "error" => "评论的内容不能少于10个字符。")); 
          exit; 
        } 
        if (C("DB_PWD") != '') { 
          if (time() - session("comment_time") < 60 && session("comment_time") > 0) {//2分钟以后发布 
            echo json_encode(array("code" => "fast", "error" => "您提交评论的速度太快了，请稍后再发表评论。")); 
            exit; 
          } 
        } 
        $data['pid'] = I("post.pid", 0, 'int'); 
        $data['pid_sub'] = I("post.pid_sub", 0, 'int'); 
        $lyid = $data['pid_sub'] > 0 ? $data['pid_sub'] : $data['pid']; 
        if ($lyid > 0) { 
          $lyinfo = M("comment")->field("uid")->where("id='" . $lyid . "'")->find(); 
          $data['touid'] = $lyinfo['uid']; 
        } else { 
          $data['touid'] = 2; 
        } 
        $data['addtime'] = time(); 
        $emots = getTableFile("emot"); 
        foreach ($emots as $v) { 
          $content = str_replace("[" . $v['name'] . "]", "<img alt='" . $v['name'] . "' src='" . __APP__ . "/Public/emot/" . ($v['id'] - 1) . ".gif'>", $content); 
        } 
        $data['content'] = addslashes($content); 
        $info = M("comment")->field("id")->where("content='" . $data['content'] . "'")->find(); 
        if ($info['id']) { 
          echo json_encode(array("code" => "comment_repeat", "error" => "检测到重复评论，您似乎提交过这条评论了")); 
          exit; 
        } 
        $lastid = M("comment")->add($data); 
        $points_comment = 20; 
        if ($lastid > 0) { 
          $day_start = strtotime(date("Y-m-d")); 
          $day_end = $day_start + 3600 * 24; 
          $comment_num_day = M("comment")->where("uid = " . $data['uid'] . " AND addtime between " . $day_start . " AND " . $day_end . "")->count(); 
          if ($comment_num_day <= 5) { //少于5条每天，则添加积分 
    //          addPoints("comment", $points_comment, $data['uid'], "评论获得" . $points_comment . "积分", 5, 1); 
          } 
    //        addMessage('comment', $data['tid'], $data['pid'], $data['mtype'], $data['touid'], $content); 
        } 
        session("comment_time", time()); 
        echo json_encode(array("code" => 200, "comment" => $content, "points" => $points_comment)); 
      } 
    }

根据分页参数获取对应评论列表

    function comments() { 
      $id = I("get.id", 0, 'int'); 
      $mtype = I("get.mtype", 1, 'int'); 
      $page = I("get.page", 1, "int"); 
      $totalnum = I("get.totalnum", 1, "int"); 
      $start = 10 * ($page - 1); 
      $sql = "tid = " . $id . " AND pid = 0"; 
      $comments = M("comment")->field("id,uid,content,addtime")->where($sql)->order("id DESC")->limit($start . ",10")->select(); 
    //    echo M("comment")->getlastsql(); 
      foreach ($comments as $k => $v) { 
        $comments[$k]['sub'] = M("comment")->field("id,uid,content,pid_sub")->where("tid = " . $id . " AND pid = " . $v['id'] . "")->order("id ASC")->select(); 
      } 
      $this->assign("id", $id); 
      $this->assign("mtype", $mtype); 
      $this->assign("comments", $comments); 
      $this->assign("comments_num", $totalnum - ($page - 1) * 10); 
      $this->display(); 
    }

切换评论分页

    if ($("#detail-page").length > 0) { 
      var id = $("#detail-page").attr("data-id"); 
      var mtype = $("#detail-page").attr("data-mtype"); 
      var totalnum = $("#detail-page").attr("data-totalnum"); 
      $("#detail-page").children("a").click(function() { 
        var page = parseInt($(this).attr("data-page")); 
        $("#detail-page").children("a").removeClass("current"); 
        $("#detail-page").children("a").eq(page - 1).addClass("current"); 
        $("#comment_list").html("<div style='padding:20px 0;text-align:center;'><img src='" + site_url + "Public/images/loading.gif'></div>"); 
        $.get(getUrl("Box/comments"), { 
          page: page, 
          id: id, 
          totalnum: totalnum, 
          mtype: mtype 
        }, 
        function(data) { 
          $("#comment_list").html(data) 
        }) 
      }) 
    }

评论表和表情表已放在压缩包里

    CREATE TABLE IF NOT EXISTS `sucai_comment` ( 
     `id` int(11) NOT NULL AUTO_INCREMENT, 
     `uid` int(11) NOT NULL, 
     `touid` int(11) DEFAULT '0', 
     `pid_sub` int(11) DEFAULT '0', 
     `tid` int(11) NOT NULL, 
     `pid` int(11) DEFAULT '0', 
     `mtype` tinyint(1) NOT NULL, 
     `content` text NOT NULL, 
     `addtime` int(10) NOT NULL, 
     PRIMARY KEY (`id`) 
    ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=5560 ;

功能实现和demo原址：www.erdangjiade.com/js/816.html