Home Backend Development PHP Tutorial 关于PHP文件树的有关问题,求解释

关于PHP文件树的有关问题,求解释

Jun 13, 2016 pm 12:56 PM
nbsp php the web

关于PHP文件树的问题,求解释。
PHP scripts that are used to connect to the database need access to the password for
that user.This can be done reasonably securely by putting the login and password in a
file called, for example, dbconnect.php, that you then include when needed.This script
can be carefully stored outside the web document tree and made accessible only to the
appropriate user.

我初学网页编程,看的是PHP和MySQL Web开发,我想问下这句话怎么理解。
This script can be carefully stored outside the web document tree and made accessible only to the appropriate user.

不把脚本放在文件树下,那上传到虚拟空间后,怎么访问这个脚本呢?

php tree web开发
------解决方案--------------------
需要的时候全路径包含,
基于安全方面的原因。

------解决方案--------------------
引用:
我的理解是这样的:

我的网页文件全部放在MyWeb这个文件夹下面了,为了数据的安全,我把数据库文件全部放在MySQL文件夹下面了。
那这个MyWeb就是网页文件树了?

但是上传的时候还不是要把这个两个文件夹都上传,那别人还不是有办法访问到我的数据库文件

文件数,就是除了敏感文件之外的所有网站运行需要的文件.
这个敏感文件包括, 连接数据库的用户名和密码等.

MYSQL文件夹是数据库层面的,这个可以通过导入导出来完成数据的初始化和备份操作,不在这个讨论范围之内.
------解决方案--------------------
首先,这句话是给有服务器控制权的建议――放到网站目录以外,用绝对路径引入
这主要是防止意外的情况匿名访问者能看到php源代码,例如php解析突然出现问题,php文件原文显示了
又或者忘了加容错和隐藏错误信息,连接数据库的php文件名暴露了

虚拟空间的数据库一般都不允许外来访问,只能本地127.0.0.1连接,所以密码外泄在短时间内还是不用担心的,尽快改密码就行

至于黑客行为,就不是这里所能解决的事了
------解决方案--------------------
安全是相对的
虽然 dbconnect.php这个包含密码 但也要进入到文件系统才能看到
如果入侵者能够进入虚拟空间的文件系统,那么他有什么不可以做的呢。即便你的dbconnect.php没放在web管辖范围,不还是一样能看到吗。更何况数据库里面还有一份呢?
------解决方案--------------------
如果你的密码用php语句赋值,而不是一个txt或ini,这样用http连接是看不出来的,只有php解析出错才会显示

因为虚拟空间通常限制只能本机连接数据库,所以外面知道密码也连不上,短时间内尽快更换密码就是了

虚拟空间要做好一些相关的处理事项,例如更多容错、一键闭站等等
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

7 PHP Functions I Regret I Didn't Know Before 7 PHP Functions I Regret I Didn't Know Before Nov 13, 2024 am 09:42 AM

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

How do you parse and process HTML/XML in PHP? How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

PHP Program to Count Vowels in a String PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

Explain late static binding in PHP (static::). Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

See all articles