网站地图
【www.gdgbn.com--mysql教程】
//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);
$sql ="";
if(empty($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 = "";
}
$tree = new sortclass($link,"`p_newsclass`");
$op = !empty($_post["op"]) ? $_post["op"] : $_get["op"];
if(!empty($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();
?>
代码如下
<script language="网页特效">
function $(e){return document.getelementbyid(e);}
function mod(cid){
$("cid").value=cid;
$("op").value="mod";
$("name").style.border="1px solid red";
}
</script>
移动分类
foreach ($category as $id){
echo "".$tree->getlayer($id, "|－ ").$tree->getvalue($id)." del edit ";
}
?>
//用phpmyadmin导入此数据库就ok了。
-- phpmyadmin sql dump
-- version 3.2.4
-- http://www.111cn.net
--
-- 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 */;