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1. www.php.net › manual › enPHP: session_regenerate_id - Manual

   www.php.net › manual › en

   Warning Currently, session_regenerate_id does not handle an unstable network well, e.g. Mobile and WiFi network. Therefore, you may experience a lost session by calling session_regenerate_id. You should not destroy old session data immediately, but should use destroy time-stamp and control access to old session ID. Otherwise, concurrent access to page may result in inconsistent state, or you ...

2. stackoverflow.com › questions › 22965067When and why I should use session_regenerate_id ()?

   stackoverflow.com › questions › 22965067

   • What Is Session_Regenerate_Id()?
   • What Does It do?
   • When Should I Use Session_Regenerate_Id()?

   As the function name says, it is a function that will replace the current session ID with a new one, and keep the current session information.

   See full list on stackoverflow.com

   It mainly helps prevent session fixation attacks. Session fixation attacks is where a malicious user tries to exploit the vulnerability in a system to fixate (set) the session ID (SID) of another user. By doing so, they will get complete access as the original user and be able to do tasks that would otherwise require authentication. To prevent such...

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   As symbecean points out in the comments below, the session id must be changed at any transition in authentication state and onlyat authentication transitions. Further reading: 1. http://php.net/session_regenerate_id 2. https://www.owasp.org/index.php/Session_fixation 3. http://en.wikipedia.org/wiki/Session_fixation 4. https://wiki.php.net/rfc/preci...

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3. www.tutorialspoint.com › php › php_function_sessionPHP - session_regenerate_id () Function

   www.tutorialspoint.com › php › php_function_session

   Sessions or session handling is a way to make the data available across various pages of a web application. The session_regenerate_id() function generates a new session id and updates the current one with the newly created one.

4. www.codestudy.net › blog › when-and-why-i-should-usePHP session_regenerate_id(): When to Use It, Why It Matters ...

   www.codestudy.net › blog › when-and-why-i-should-use

   Dec 22, 2025 · PHP sessions are the backbone of this state management, but they’re not immune to security threats. One of the most powerful tools in PHP’s session security arsenal is `session_regenerate_id ()`. At first glance, it might seem like a simple function to “change the session ID,” but its role in securing applications extends far beyond that.

5. docs.w3cub.com › php › functionSession_regenerate_id - PHP - W3cubDocs

   docs.w3cub.com › php › function

   Warning Currently, session_regenerate_id does not handle an unstable network well, e.g. Mobile and WiFi network. Therefore, you may experience a lost session by calling session_regenerate_id. You should not destroy old session data immediately, but should use destroy time-stamp and control access to old session ID. Otherwise, concurrent access to page may result in inconsistent state, or you ...

6. tutoriels.edu.lat › pub › phpPHP - fonction session_regenerate_id ()

   tutoriels.edu.lat › pub › php

   Définition et utilisation Les sessions ou la gestion de session sont un moyen de rendre les données disponibles sur différentes pages d'une application Web. le session_regenerate_id () La fonction génère un nouvel identifiant de session et met à jour l'actuel avec le nouvellement créé.

7. People also ask

   What does session_regenerate_id() do?

   • session_regenerate_id () will replace the current session id with a new one, and keep the current session information. When session.use_trans_sid is enabled, output must be started after session_regenerate_id () call. Otherwise, old session ID is used.

   PHP: session_regenerate_id - Manual

   www.php.net/manual/en/function.session-regenerate-id.php

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   Why is session_regenerate_ID not working?

   • Currently, session_regenerate_id does not handle an unstable network well, e.g. Mobile and WiFi network. Therefore, you may experience a lost session by calling session_regenerate_id. You should not destroy old session data immediately, but should use destroy time-stamp and control access to old session ID.

   PHP: session_regenerate_id - Manual

   www.php.net/manual/en/function.session-regenerate-id.php

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   What is a session replacement function?

   • As the function name says, it is a function that will replace the current session ID with a new one, and keep the current session information. What does it do? It mainly helps prevent session fixation attacks.

   When and why I should use session_regenerate_id ()?

   stackoverflow.com/questions/22965067/when-and-why-i-should-use-session-regenerate-id

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   Should I regenerate a session ID?

   • Any time we add critical data to a session you should consider regenerating the session ID. If you need to harden your application against fixation then a random regeneration can be useful but I would NEVER regenerate on every request. By default PHP stores sessions in files on the local disk.

   When and why I should use session_regenerate_id ()?

   stackoverflow.com/questions/22965067/when-and-why-i-should-use-session-regenerate-id

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8. www.appframework.org › php_manual_en › functionUpdate the current session id with a newly generated one

   www.appframework.org › php_manual_en › function

   session_regenerate_id () will replace the current session id with a new one, and keep the current session information.