<?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();
$sql_newsid="select news_id from news where category_id='$category_id'";
mysql_query($sql_newsid);
close_connection();
$sql_review="delete from review where news_id='$sql_newsid'";
$sql_news="delete from news where category_id='$category_id'";
$sql_category="delete from ccategory where category_id='$category_id'";
get_connection();
mysql_query($sql_review);
mysql_query($sql_news);
mysql_query($sql_category);
close_connection();
$message = "分类及其所有相关新闻、评论信息删除成功！";
header("Location:index.php?url=category_management.php&message=$message");
?>