PHP security-source code exposed
Source code exposure
An important issue regarding inclusion is the exposure of source code. The main reason for this problem is the following common situation:
l Use the .inc extension for included files
l The included file is saved in the main directory of the website
##l Apache has not set the type of .inc file
l Apache’s default file type is text/plain
The above situation results in the included file being directly accessible through the URL. Even worse, they will be treated as normal text and not parsed by PHP, so your source code will be displayed in the user's browser (see Figure 5-1).
Figure 5-1. Exposure of source code in the server
It's easy to avoid this situation. You can only reorganize your application and put all the included files outside the main directory of the website. The best way is to only place the files that need to be published publicly in the main directory of the website.
While this may sound crazy, there are many situations where source code can be exposed. I've seen Apache configuration files written by mistake (and not discovered until the next startup), inexperienced sysadmins upgrading Apache but forgetting to add PHP support, and a host of other situations that lead to source code being exposed.
By keeping as much PHP code as possible outside of your website's main directory, you prevent source code exposure. At the very least, it's best to keep all include files outside of the site's main directory.
Some methods can limit the possibility of source code exposure but cannot fundamentally solve the problem. These methods include configuring Apache to handle .inc files the same as PHP files, using the .php suffix for include files, and configuring Apache not to accept direct requests for .inc files:
<Files ~ "\.inc$"> Order allow,deny Deny from all </Files>
While these methods have their advantages, none are as secure as placing the include files outside of the site's home directory. Don't rely on the above methods to protect your application, at most treat them as defense in depth.
The above is the content of PHP security-source code exposure. For more related content, please pay attention to the PHP Chinese website (www.php.cn)!

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

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

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

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

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

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,

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

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

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 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.
