:PHP代码排错
为什么PHP代码(数据库+外链)不能下载?
源代码 dl_func.php
-------------------------------------------------------
function dl_dbconnect(){
$dl_in=0;
//打开 MySQL 服务器连接
$dl_in=mysql_connect("localhost:3306","a1006191543","密码没错");
//选择一个数据库
mysql_select_db("a1006191543",$dl_in);
return $dl_in;
}
?>
-------------------------------------------------------
源代码 filedown.php
-------------------------------------------------------
require_once("dl_func.php");
$dl_in=dl_dbconnect();
$strQuery="select url from dl_file where id='$id'"; //定义查询规则
$dl_res=mysql_query($strQuery,$dl_in); //返回id送到$dl_res
$arrfile=mysql_fetch_array($dl_res); //根据id返回数组到$arrfile
$arr_temp=split("/",$arrfile[url]); //将字符串依指定的规则分开
$filename=$arr_temp[sizeof($arr_temp)-1]; //sizeof: 获知数组的大小
$strQuery="update dl_file set count=count+1 where id='$id'";
mysql_query($strQuery,$dl_in);
header("Content-type: application/file");
header("Content-Disposition: attachment; filename=$filename");
header("location:$arrfile[url]");
mysql_close($dl_in);
?>
-------------------------------------------------------
数据库表"dl_file"结构:
CREATE TABLE dl_file (
id varchar(6),
name varchar(50),
url varchar(200),
count bigint(10)
);
id name url count
-------------------------------------------------------
A001 StellaX http://www.last.com/stella.RAR 0
A002 Z26 http://www.mey.com/Z26.ZIP 0
A003 飞机空战 http://www.piogame.com/River.bin 0
B012 滑板 http://www.computer.com/Skate.bin 0
B013 蓝精灵 http://www.computer.com/Catle.bin 0
D064 史努比 http://www.AKuter.com/Snoopy.bin 0
早先在购买的空间里,运行正常。
为何在现在的空间里,也是这2个程序(换了数据库用户名、密码),报错?
调用形式:http://www.******.com/filedown.php?id=A001
IE报错信息:
“此错误(HTTP 403 禁止)意味着 Internet Explorer 可以连接到该网站,但是没有查看该网页的权限。”
回复讨论(解决方案)
先把header注释掉。echo url看看是否正确
已找到故障点: filedown.php
$strQuery="select url from dl_file where id= '$id'"; //定义查询规则
改为固定参数后:
$strQuery="select url from dl_file where id= 'A001'"; //定义查询规则
外链正常
但是,如何改正带参运行?带参调用形式如下:
http://www.*****.com/down/filedown.php?id=A001
$id = isset($_GET['id']) ? $_GET['id'] : 'A001';
$strQuery="select url from dl_file where id='$id'";
$id如果为空,你没有加处理吧。
if(!$id){
exit();
}

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

Alipay PHP...

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

Article discusses essential security features in frameworks to protect against vulnerabilities, including input validation, authentication, and regular updates.

The article discusses adding custom functionality to frameworks, focusing on understanding architecture, identifying extension points, and best practices for integration and debugging.
