CREATE DATABASE `sortclass`DEFAULT CHARSET utf8;
 CREATE TABLE IF NOT EXISTS `class` (
 `cid` mediumint(8) unsigned NOT NULL auto_increment,
 `pid` mediumint(8) unsigned NOT NULL,
 `cname` varchar(50) NOT NULL,
 PRIMARY KEY (`cid`),
 KEY `pid` (`pid`)
 ) ENGINE=MyISAM DEFAULT CHARSET=utf8;

header("Content-type: text/html; charset=utf-8");
//连接数据库
$link = mysql_connect('localhost','root','eric') or die(mysql_error());
mysql_select_db('sortclass',$link);
//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_assoc($results)){
   $this->setNode($node['cid'],$node['pid'],$node['cname']);
  }
 }
 function setNode ($id, $parent, $value){
  $parent = $parent"insert into $this->table (`pid`,`cname`) values ('$pid','$name')",$this->link);
 }
 function modNode($cid, $newName){
  mysql_query("update $this->table set `cname`='$newName' where `cid` = $cid",$this->link);
 }
 function delNode($cid){
  $allChilds = $this->getChilds($cid);
  $sql ='';
  if(empty($allChilds)){
   $sql = "delete from $this->table where `cid` = $cid";
  }else{
   $sql = 'delete from '.$this->table.' where `cid` in ('.implode(',',$allChilds).','.$cid.')';
  }
  mysql_query($sql,$this->link);
 }
 function moveNode($cid, $topid){
  mysql_query("update $this->table set `pid`=$topid where `cid` = $cid", $this->link);
 }
}
//函数
function back(){
 echo '<script language="JavaScript">window.location.href="test.php" rel="external nofollow" +new Date().getTime();</script>';
 exit;
}
//声成select
function makeSelect($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,'`class`');
$op = !empty($_POST['op']) "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';
   $('name').style.border='1px solid red';
  }
 </script>
 <form action="test.php" method="post">
  名称:<input type="text" id="name" name="cname" /> 添加到:<"hidden" id="op" name="op" value="add" />
  <input type="hidden" id="cid" name="cid" />
  <input type="submit" value="Submit" />
 </form>
 <h3>移动分类</h3>
 <form action="test.php" method="post">
  <"hidden" id="op" name="op" value="move" />
  <input type="submit" value="Submit" />
 </form>
 <ul>
<"test.php" rel="external nofollow" >Del</a> <a onclick="mod('.$id.')">Edit</a> </li>';
}
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