Invalidating session in php

As part of the Heartbleed event, I have upgraded Open SSL, reissued and replaced certificates and revoked the old ones and changed passwords however, I am also seeing advice to invalidate all session cookies (https://security.stackexchange.com/a/55089/18057) but I cannot find out how to do this.

Does this just apply to PHP sessions, for example, or is it more than this?

invalidating session in php-64invalidating session in php-87

I felt that there should be a way to do it from Java Script; unfortunately, Java Script doesn't seem to have an handler that you want.Also, if you are using a login framework that supports persistent logins (you are if you have a 'remember me' checkbox on your login form), then you can and should delete all the persistent logins from your database too.One note is that if you have shared session state between your application servers in a centralized cache (a not uncommon setup in a load balanced configuration where sticky sessions are not supported), then that cache will need to be flushed.This behavior is usually desirable for your web application.You can even make the session last beyond closing the browser window, which enables you to remember users and their data over longer periods of time.This is the underlying functionality that enables “Remember me” login functions for example.Use PHP’s built-in session handler You may just as well take advantage of the built-in functionality in PHP – as long as you remember that default settings may not always be what you want, and they may not always be secure enough for your project.The problem is you want a page to be 'loaded' when the window is closing.In order to load a page you have to have a window.... Net is approved by the American Psychological Association (APA) to sponsor continuing education for psychologists. Net maintains responsibility for this program and its content. Net, provider #1107, is approved as a provider for social work continuing education by the Association of Social Work Boards (ASWB) org, through the Approved Continuing Education (ACE) program. This course will provide clinicians with knowledge and skills for planning effective treatment to reduce problems associated with a client’s use of psychoactive substances, as well as guidance in developing relapse prevention strategies as part of the treatment plan. Course format (distance learning - online activity). Net is approved by the National Board for Certified Counselors (NBCC) as an NBCC-Approved Continuing Education Provider (ACEP) and may offer NBCC-approved clock hours for events that meet NBCC requirements. Net solely is responsible for all aspects of the program. Psychological approaches to understanding and treating disorders of psychoactive substance use change and grow daily, and new information may emerge that supersedes some content in this course.

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