复制代码 代码如下:

//连接数据库
$link = mysql_connect(\'localhost\',\'root\',\'\') or die(mysql_error());
mysql_select_db(\'class\',$link)or die(mysql_error());
mysql_query(\"set names gbk\");
//无限分类类库
class sortclass{
var $data = array();
var $child = array(-1=>array());
var $layer = array(-1=>-1);
var $parent = array();
var $link;
var $table;
function sortclass($link, $table){
$this->setnode(0, -1, \'顶极节点\');
$this->link = $link;
$this->table = $table;
$node = array();
$results = mysql_query(\"select * from $this->table\",$this->link);
while($node = mysql_fetch_array($results)){
$this->setnode($node[\'id\'],$node[\'f_id\'],$node[\'name\']);
}
}
function setnode ($id, $parent, $value){
$parent = $parent?$parent:0;
$this->data[$id] = $value;
$this->child[$id] = array();
$this->child[$parent][] = $id;
$this->parent[$id] = $parent;
$this->layer[$id] = !isset($this->layer[$parent])? 0 : $this->layer[$parent] + 1;
}
function getlist (&$tree, $root= 0){
foreach ($this->child[$root] as $key=>$id){
$tree[] = $id;
if ($this->child[$id]) $this->getlist($tree, $id);
}
}
function getvalue ($id){return $this->data[$id];}
function getlayer ($id, $space = false){
return $space?str_repeat($space, $this->layer[$id]):$this->layer[$id];
}
function getparent ($id){return $this->parent[$id];}
function getparents ($id){
while ($this->parent[$id] != -1){
$id = $parent[$this->layer[$id]] = $this->parent[$id];
}
ksort($parent);
reset($parent);
return $parent;
}
function getchild ($id){return $this->child[$id];}
function getchilds ($id = 0){
$child = array($id);
$this->getlist($child, $id);
return $child;
}
function addnode($name,$pid){
//echo \"insert into $this->table (`f_id`,`name`) values (\'$pid\',\'$name\')\";exit;
mysql_query(\"insert into $this->table (`f_id`,`name`) values (\'$pid\',\'$name\')\",$this->link);
}
function modnode($cid, $newname){
mysql_query(\"update $this->table set `name`=\'$newname\' where `id` = $cid\",$this->link);
}
function delnode($cid){
$allchilds = $this->getchilds($cid);
$sql =\'\';
if(emptyempty($allchilds)){
$sql = \"delete from $this->table where `id` = $cid\";
}else{
$sql = \'delete from \'.$this->table.\' where `id` in (\'.implode(\',\',$allchilds).\',\'.$cid.\')\';
}
mysql_query($sql,$this->link);
}
function movenode($cid, $topid){
mysql_query(\"update $this->table set `f_id`=$topid where `id` = $cid\", $this->link);
}
}
//函数
function back(){
echo \'<script language=\"网页特效\">window.location.href=\"news.class.php?\"+new date().gettime();</script>\';
exit;
}
//生成select
function makeselect($array,$formname){
global $tree;
$select = \'<select name=\"\'.$formname.\'\">\';
foreach ($array as $id){
$select.=\'<option value=\"\'.$id.\'\">\'.$tree->getlayer($id, \'|-\').$tree->getvalue($id).\"</option>\";
}
return $select.\'</select>\';
}
$tree = new sortclass($link,\'`p_newsclass`\');
$op = !emptyempty($_post[\'op\']) ? $_post[\'op\'] : $_get[\'op\'];
if(!emptyempty($op)){
if($op==\'add\'){
$tree->addnode($_post[\'cname\'],$_post[\'pid\']);
back();
}
if($op==\'mod\'){
$tree->modnode($_post[\'cid\'],$_post[\'cname\']);
back();
}
if($op==\'del\'){
$tree->delnode($_get[\'cid\']);
back();
}
if($op==\'move\'){
$tree->movenode($_post[\'who\'],$_post[\'to\']);
back();
}
}
$category = $tree->getchilds();
?>

复制代码 代码如下:

<style type=\"text/css\">
body{font-size:12px;}
ul{list-style:none;}
a{cursor:pointer;}
</style>
<script language=\"javascript\">
function $(e){return document.getelementbyid(e);}
function mod(cid){
$(\'cid\').value=cid;
$(\'op\').value=\'mod\';
$(\'name\').style.border=\'1px solid red\';
}
</script>
<form action=\"\" method=\"post\">
名称:<input type=\"text\" id=\"name\" name=\"cname\" /> 添加到:<?=makeselect($category,\'pid\')?><br />
<input type=\"hidden\" id=\"op\" name=\"op\" value=\"add\" />
<input type=\"hidden\" id=\"cid\" name=\"cid\" />
<input type=\"submit\" value=\"submit\" />
</form>
<h3>移动分类</h3>
<form action=\"\" method=\"post\">
<?=makeselect($category,\'who\')?> gt;移动到:<?=makeselect($category,\'to\')?>
<input type=\"hidden\" id=\"op\" name=\"op\" value=\"move\" />
<input type=\"submit\" value=\"submit\" />
</form>
<ul>
<?php
foreach ($category as $id){
echo \'<li>\'.$tree->getlayer($id, \'|－ \').$tree->getvalue($id).\' <a href=\"time.php?op=del&cid=\'.$id.\'\">del</a> <a onclick=\"mod(\'.$id.\')\">edit</a> </li>\';
}
?>
</ul>

复制代码 代码如下:

-- phpmyadmin sql dump
-- version 3.2.4
--
-- 主机: localhost
-- 生成日期: 2010 年 07 月 02 日 03:02
-- 服务器版本: 5.1.41
-- php 版本: 5.3.1
set sql_mode=\"no_auto_value_on_zero\";
 
/*!40101 set @old_character_set_client=@@character_set_client */;
/*!40101 set @old_character_set_results=@@character_set_results */;
/*!40101 set @old_collation_connection=@@collation_connection */;
/*!40101 set names utf8 */;
--
-- 数据库: `class`
--
-- --------------------------------------------------------
--
-- 表的结构 `p_newsclass`
--
create table if not exists `p_newsclass` (
  `id` int(7) not null auto_increment,
  `f_id` int(7) not null,
  `name` varchar(255) not null,
  primary key (`id`)
) engine=innodb  default charset=utf8 auto_increment=10 ;
--
-- 转存表中的数据 `p_newsclass`
--
insert into `p_newsclass` (`id`, `f_id`, `name`) values
(3, 0, \'中国\'),
(4, 3, \'福建\'),
(5, 4, \'龙岩市\'),
(7, 4, \'厦门市\'),
(9, 5, \'漳平市\');
/*!40101 set character_set_client=@old_character_set_client */;
/*!40101 set character_set_results=@old_character_set_results */;
/*!40101 set collation_connection=@old_collation_connection */;