上一篇说了怎么查看帖子,这一篇就来说说怎么把数据库里面的帖子提取出来编辑.

代码逻辑是这样的:

先验证是否是当前用户的帖子,是的话就提供编辑按钮,这个在view.php中实现.

->在数据库中根据get的a来提取已有帖子数据,加载到模板文件中.

->最后把得到数据更新到数据库里面,再跳转到查看帖子

edit.php

include('conn.php');

include('lib.php');

include('ChromePhp.php');

session_start();

// Chromephp::log($_SESSION['uid']);

// Chromephp::log($_SESSION['name']);

//如果会话没有被设置，查看是否设置了cookie

if(!isset($_SESSION['uid']))

{

if(isset($_COOKIE['uid'])&&isset($_COOKIE['name']))

{

//用cookie给session赋值

$_SESSION['uid']=$_COOKIE['uid'];

$_SESSION['name']=$_COOKIE['name'];

}

else

{

header("Location: login.php");

exit();

}

}

//获取分类目录

if($_SERVER['REQUEST_METHOD'] == 'GET')

{

$aid=$_GET['a'];

$sql="select id, name from categories";

$query=mysql_query($sql);

while ($node=mysql_fetch_assoc($query)) {

$category[$node['id']]=$node['name'];

}

//提取已有的帖子内容

$query=mysql_query("select * from articles where id='$aid'");

$article=mysql_fetch_array($query);

ChromePhp::log($article);

include("templates/edit.php");

}

if($_SERVER['REQUEST_METHOD'] == 'POST')

{

//header("Location: index.php") ;

//print_r($category);

$aid=$_GET['a'];

$title=format($_POST['title']);

$content=format($_POST['content']);

$classic=format($_POST['classic']);

//ChromePhp::log($classic);

//更新分类文章数量

$sql="update categories set articles = articles+1 where name = '$classic'";

$query=mysql_query($sql);

//ChromePhp::log($query);

$time=time();

//ChromePhp::log($aid);

//上传图片

if ($_FILES['img']['error'] ==0 && ($_FILES['img']['type']=="image/gif"

|| $_FILES['img']['type']=="image/jpeg" || $_FILES['img']['type']=="image/pjpeg"

|| $_FILES['img']['type']=="image/png"

))

{

//判断错误代码，=0则上传成功，！=0则上传失败

//处理上传过程

// ChromePhp::log("开始上传");

$img = $_FILES['img'];

//header("Location: templates/error.php") ;

//exit;

//拼接文件路径

$path ='upload/'.mk_dir().'/'.randName(). '.' .getExt($img['name']);

// ChromePhp::log($path);

//移动

if(move_uploaded_file($img['tmp_name'],$path)) {

mysql_query("update articles set title='$title', content='$content', category='$classic', edittime='$time', img_path='$path' where id='$aid'");

header("Location: view.php?a=".$aid);

exit();

} else{

ChromePhp::log("上传失败");

}

}else

{

mysql_query("update articles set title='$title', content='$content', category='$classic', edittime='$time', img_path='$path' where id='$aid'");

// $url = "http://blog.csdn.net/abandonship";

// echo "

// echo "window.location.href='$url'";

// echo "";

header("Location: view.php?a=".$aid);

exit();

// ChromePhp::log($_FILES['img']['error']);

}

}

?>templates/edit.php