以下为引用的内容：

catalog_id //分类的自然序号

catalog_uid //分类的父分类

catalog_name //分类名

catalog_path_number //亲缘树数字形式 0:1:2

catalog_path_char //亲缘树字符形式 分类1:分类1.1:分类1.1.1

========================================================*/

class catalog{

var config;

var catalog_dbname;

var links;

private function connect(){

this->links = mysql_connect(this->config['host'],this->config['user'],this->config['pass']) or die("错误: 第".__LINE__."行
".mysql_error());

mysql_select_db(this->config['dbname'],this->links);

mysql_query("SET NAMES gb2312");

}

function catalog_show(uid = 0){

this->connect();

sql = "SELECT * FROM ".this->catalog_dbname. "

WHERE catalog_uid = ". uid ."

ORDER BY catalog_id ";

result = mysql_query(sql,this->links) or die("错误: 第".__LINE__."行
".mysql_error());

if(mysql_num_rows(result) > 0){

while (row = mysql_fetch_assoc(result)){

if(this->sun_catalog(row['catalog_id'])){//判断有没有子分类

cata_img = "";

}else{

cata_img = "";

}

path = explode(":",row['catalog_path_number']);

if(count(path) > 1){

for(i=1;i

path_img .= "";

}

}

echo path_img.cata_img;

echo "";

echo row['catalog_name']."
";

path_img = "";

if(this->sun_catalog(row['catalog_id'])){

hidden_div = "style='display:none'";

echo "

";

}

}

}

}

private function sun_catalog(uid){//判断是否有子分类

sql = "SELECT * FROM ".this->catalog_dbname. "

WHERE catalog_uid = ". uid ."

ORDER BY catalog_id ";

result = mysql_query(sql,this->links) or die("错误: 第".__LINE__."行
".mysql_error());

if(mysql_num_rows(result) > 0){

return true;

}else{

return false;

}

}

function catalog_add(uid,name){

//获取父id的亲缘树

this->connect();

sql = "SELECT * FROM ".this->catalog_dbname."

WHERE catalog_id = '".uid."'";

result = mysql_query(sql,this->links)

or die("错误: 第".__LINE__."行
".mysql_error());

row = mysql_fetch_assoc(result);

fid_path_number = row['catalog_path_number'];//id的数字亲缘树

fid_path_char = row['catalog_path_char'];//id的字符亲缘树

//插入数据 先插入行->再找到最新插入的id, 在依据这个id进行修改

sql = "INSERT INTO ".this->catalog_dbname."(catalog_uid,catalog_name)

VALUES(".uid.",'".name."')";

result = mysql_query(sql,this->links)

or die("错误: 第".__LINE__."行
".mysql_error());

catalog_id = mysql_insert_id();//获取自己的id

catalog_path_number = fid_path_number.":".catalog_id;//得到自己的数字亲缘数

catalog_path_char = fid_path_char.":".name;//得到自己的字符亲缘数

sql = "UPDATE '".this->catalog_dbname."'

SET

catalog_path_number = '".catalog_path_number."',

catalog_path_char = '".catalog_path_char."'

WHERE

catalog_id = ".catalog_id;

mysql_query(sql,this->links)

or die("错误: 第".__LINE__."行
".mysql_error());

}

function catalog_del(id){

this->connect();

sql = "DELETE FROM ".this->catalog_dbname."

WHERE catalog_id = ".id;

mysql_query(sql,this->links)

or die("错误: 第".__LINE__."行
".mysql_error());

}

function catalog_set(id,name){

this->connect();

sql = "UPDATE ".this->catalog_dbname."

SET

catalog_name = '".name."'

WHERE

catalog_id = ".id;

mysql_query(sql,this->links)

or die("错误: 第".__LINE__."行
".mysql_error());

}

}

?>

[/CODE]