<?php
include_once("functions/is_login.php");
if (!session_id()){//这里使用session_id()判断是否已经开启了Session
	session_start();
}
if(!is_login()){
	echo "请您登录系统后，再访问该页面！";
	return;
}
include_once("functions/database.php");
$category_id = $_GET["category_id"];
get_connection();
mysql_query("delete from category where category_id=$category_id");
close_connection();
$message = "分类信息删除成功！";
header("Location:index.php?url=news_list.php&message=$message");
?>