本文所述留言板程序使用了无限级分类的原理，可以实现无限级留言与回复。留言列表gclist保留了留言层次空格，使留言--回复层次分明。分享给大家供大家参考。具体分析如下：

功能上，本程序可以实现无限级留言与回复，即对留言回复，对回复的留言回复。当然你也可以作有限制的控制，使其只对留言回复，关键是在模板代码中去掉回复的留言中的“回复该留言”即可。欢迎去拍砖！

程序效果如下图所示：

完整源码点击此处本站下载。

数据表：

复制代码 代码如下:-- ----------------------------
-- Table structure for `wb_guestbook`
-- ----------------------------
DROP TABLE IF EXISTS `wb_guestbook`;
CREATE TABLE `eway_guestbook` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`pid` int(10) NOT NULL,
`email` varchar(50) NOT NULL,
`path` varchar(100) NOT NULL,
`username` varchar(30) NOT NULL,
`updatetime` int(10) NOT NULL,
`ip` varchar(15) NOT NULL,
`url` varchar(200) NOT NULL,
`inputtime` int(10) NOT NULL,
`content` text NOT NULL,
`verify` varchar(32) NOT NULL,
`isreply` tinyint(1) NOT NULL,
`status` tinyint(1) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=42 DEFAULT CHARSET=utf8;

代码：

复制代码 代码如下:<?php
// +----------------------------------------------------------------------
// | WBlog
// +----------------------------------------------------------------------
// | Copyright (c) 2008 http:// All rights reserved.
// | Author: 网菠萝果
// +----------------------------------------------------------------------
// $Id$
/**
+------------------------------------------------------------------------------
* @function 留言板模型 类GuestbookModel.class.php
+------------------------------------------------------------------------------
*/

class GuestbookModel extends RelationModel{
// +----------------------------------------------------------------------
// | $_validate表单自动验证
// +----------------------------------------------------------------------

protected $_validate = array(
array('email','require','请填写您的邮箱!'),
array('email','email','邮箱格式错误！'),

);
// +----------------------------------------------------------------------
// | $_auto表单自动填充
// +----------------------------------------------------------------------

protected $_auto=array(
array('status','1'),
array('inputtime','time',1,'function'),
array('content','content',1,'callback'),
array('url','geturl',1,'callback'),
array ('inputtime','time',1,'function'),
array('path','path',3,'callback'),
array('username','getusername',3,'callback'),
);
// +----------------------------------------------------------------------
// | getusername()过滤用户名
// +----------------------------------------------------------------------
public function getusername(){
if (isset ($_POST['username'])) {
if(trim($_POST['username'])=='网菠萝果'){
return $data= '￣□￣';
}elseif(strlen($_POST['username']) >10){
return $data= msubstr($_POST['username'],0,5);
}else{
return $data= $_POST['username'];
}
}
}
// +----------------------------------------------------------------------
// | path()返回子类的path,父类的path的值为0
// +----------------------------------------------------------------------
public function path(){
$pid=isset($_POST['pid'])?(int)$_POST['pid']:0;
$id=$_POST['id'];
if($pid==0){
return 0;
}

$fat=$this->where(array('id' => $pid))->find();
$data=$fat['path'].'-'.$fat['id'];
return $data;
}
// +----------------------------------------------------------------------
// | content()过滤留言内容
// +----------------------------------------------------------------------
public function content() {
if (isset ($_POST['content']) && !empty ($_POST['content'])) {
$data =deleteHtmlTags($_POST['content']);
$data =safeHtml($data);
if (strlen($data) > 1000) {
$data = msubstr($data, 0, 500);
}
return $data;
}
}
// +----------------------------------------------------------------------
// | content()过滤URL
// +----------------------------------------------------------------------
public function geturl(){
if (isset ($_POST['url'])) {
$data = deleteHtmlTags($_POST['url']);
$data = safeHtml($data);
return $data=$data?$data:"";
}
}
// +----------------------------------------------------------------------
// |gclist($field,$where='',$pagesize=30)留言列表
// +----------------------------------------------------------------------
// |$field,字段
// +----------------------------------------------------------------------
// |$where查询条件，默认为空
// +----------------------------------------------------------------------
// |$pagesize分页记录，默认为30
// +----------------------------------------------------------------------
// |使用方法，看上面的控制器调用
// +----------------------------------------------------------------------

public function gclist($field,$where='',$pagesize=30) {
import("ORG.Util.Page");
$count = $this->field('id')->where($where)->count();
$P = new Page($count, $pagesize);

$list=$this->field($field)->where($where)->order('bpath,id')->limit($P->firstRow . ',' . $P->listRows)->select();

foreach ($list as $k => $v) {
$list[$k]['count'] = count(explode('-', $v['bpath']));
$list[$k]['tousername']=$this->where(array('id'=> $v['pid']))->getField('username');
$str = '';
if ($v['pid'] <> 0) {
for ($i = 0; $i < $list[$k]['count'] * 2; $i++) {
$str .= '&nbsp;';
}
$str .= ' ';
}
$list[$k]['space'] = $str;
}
$P->setConfig('header', '篇');
$P->setConfig('prev', "«");
$P->setConfig('next', '»');
$P->setConfig('first', '|«');
$P->setConfig('last', '»|');
$page = $P->show();
$arr=array('page'=>$page,'list'=>$list);
return $arr;
}
}
?>

希望本文所述对大家的ThinkPHP框架程序设计有所帮助。