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