Data exposure Another concern about databases is the exposure of sensitive data. Regardless of whether you save credit card numbers, Social Security numbers, or other data, you still want to make sure your database is secure. Although database security is beyond the scope of this book (and is not the responsibility of PHP developers), you can encrypt your most sensitive data so that as long as the keys are not compromised, database security problems are not catastrophic. as a result of. (For a detailed introduction to encryption, please refer to Appendix C of this book) If you want to see the picture, please go to the technical documentation area to download the original chm. The above is the content of PHP security-data exposure. For more related content, please pay attention to the PHP Chinese website (www.php. cn)!
## Introduction: Exposure of Data Regarding databases, another point to be concerned about is the exposure of sensitive data. Regardless of whether you save credit card numbers, Social Security numbers, or other data, you still want to make sure your database is secure. &nbs...
2. PHP Security - Session Data Exposure
3.
php session hijacking and prevention methods_PHP tutorial
Introduction: PHP session hijacking and prevention methods. Session data exposure Session data often contains some personal information and other sensitive data. For this reason, exposure of session data is a common concern. Generally speaking, exposed
The above is the detailed content of Recommended articles about data exposure. For more information, please follow other related articles on the PHP Chinese website!

PHPidentifiesauser'ssessionusingsessioncookiesandsessionIDs.1)Whensession_start()iscalled,PHPgeneratesauniquesessionIDstoredinacookienamedPHPSESSIDontheuser'sbrowser.2)ThisIDallowsPHPtoretrievesessiondatafromtheserver.

The security of PHP sessions can be achieved through the following measures: 1. Use session_regenerate_id() to regenerate the session ID when the user logs in or is an important operation. 2. Encrypt the transmission session ID through the HTTPS protocol. 3. Use session_save_path() to specify the secure directory to store session data and set permissions correctly.

PHPsessionfilesarestoredinthedirectoryspecifiedbysession.save_path,typically/tmponUnix-likesystemsorC:\Windows\TemponWindows.Tocustomizethis:1)Usesession_save_path()tosetacustomdirectory,ensuringit'swritable;2)Verifythecustomdirectoryexistsandiswrita

ToretrievedatafromaPHPsession,startthesessionwithsession_start()andaccessvariablesinthe$_SESSIONarray.Forexample:1)Startthesession:session_start().2)Retrievedata:$username=$_SESSION['username'];echo"Welcome,".$username;.Sessionsareserver-si

The steps to build an efficient shopping cart system using sessions include: 1) Understand the definition and function of the session. The session is a server-side storage mechanism used to maintain user status across requests; 2) Implement basic session management, such as adding products to the shopping cart; 3) Expand to advanced usage, supporting product quantity management and deletion; 4) Optimize performance and security, by persisting session data and using secure session identifiers.

The article explains how to create, implement, and use interfaces in PHP, focusing on their benefits for code organization and maintainability.

The article discusses the differences between crypt() and password_hash() in PHP for password hashing, focusing on their implementation, security, and suitability for modern web applications.

Article discusses preventing Cross-Site Scripting (XSS) in PHP through input validation, output encoding, and using tools like OWASP ESAPI and HTML Purifier.


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DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
