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自己寫(xiě)的一個(gè)評(píng)論系統(tǒng)源碼分享給大家，包括有表情，還有評(píng)論機(jī)制。用戶名是隨機(jī)的

針對(duì)某一篇文章進(jìn)行評(píng)論

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" => "評(píng)論的內(nèi)容不能少于10個(gè)字符。")); 
      exit; 
    } 
    if (C("DB_PWD") != '') { 
      if (time() - session("comment_time") < 60 && session("comment_time") > 0) {//2分鐘以后發(fā)布 
        echo json_encode(array("code" => "fast", "error" => "您提交評(píng)論的速度太快了，請(qǐng)稍后再發(fā)表評(píng)論。")); 
        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='" . $v['name'] . "' src='http://www.gimoo.net/t/1807/5b4c59697c962.html" . __APP__ . "/Public/emot/" . ($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" => "檢測(cè)到重復(fù)評(píng)論，您似乎提交過(guò)這條評(píng)論了")); 
      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條每天，則添加積分 
//          addPoints("comment", $points_comment, $data['uid'], "評(píng)論獲得" . $points_comment . "積分", 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)); 
  } 
}

根據(jù)分頁(yè)參數(shù)獲取對(duì)應(yīng)評(píng)論列表

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(); 
}

切換評(píng)論分頁(yè)

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='http://www.gimoo.net/t/1807/5b4c59697c962.html" + 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) 
    }) 
  }) 
}

評(píng)論表和表情表已放在壓縮包里

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 ;

功能實(shí)現(xiàn)和demo原址：www.erdangjiade.com/js/816.html