When do sessions expire php

It is then directed to the home page of the user. Login page: php. This enables us to retrieve session variables from this page. Using time function , the current time can be calculated. The difference between the current time and the session variable created at the time of login should not exceed the desired timeout. When the duration exceeds, the session is destroyed and the page is redirected to the Login page. Skip to content. Change Language. Related Articles.

Table of Contents. Follow Post Reply. Very nice. Clear and concise. I want to destroy a session when there is no user activity up to some amount of time say 15 minutes, how i could make a session that checks whether there is any key press event or not??

If you want to monitor what's happening on the browser, that would require JavaScript. The first step of this would be to set the session mechanism up so it destroys the session after your desired timeout period. My above post explains how that works. The second step - if you want every key and mouse interaction to refresh the session timeout - would be to use JavaScript to listen for all key and mouse events.

It should be sufficient to listen for "keydown" and "mousemove" events on the document object. What I mean by that is: set up a PHP script who's only purpose is to refresh the session, and then have JavaScript request that script on events. Also, to avoid flooding the server with pings, when your users are typing rapidly or moving the mouse around a lot, you'd want to take measures to make sure AJAX requests aren't being sent tens or hundreds of times per second.

Which can easily happen with the mousemove event. Make sure you keep track of when AJAX requests are being fired, and that it's only happening once every few seconds. One more thing. JavaScript event propagation is a bit of a tricky thing, and it is possible to stop events from reaching the document object. If you do that anywhere in your code or are using poorly built plugins! Merry Christmas! I tried this code to check timeout, but always get the same session id: Expand Select Wrap Line Numbers.

Post Reply. Similar topics Oracle Database. Advanced replication: Setting timeout for insert transactions. Setting timeout on external javascript. Setting timeout for basic authentication. Setting timeout for methods. Setting timeout for read api.

Visual Basic. Problem in setting Timeout. Setting timeout. Javascript setting timeout problem. Microsoft Excel. How to implement control array with vba. You then just have to change the values of each session. In php. Session stuff quit working. I re-created the php directory. Still no luck. I re-created the session directory in the php directory, and session stuff resumed working.

Note to self: Don't do that again!!!! The answer was simply that you need to have the domain be consistent for sessions to work consistently. In my case, I was switching back and forth between www. The unusual port, the hidden Location: call, the handoff with OAuth, etc all served to confuse me, but the intermitent error was caused by this simple goof of keeping the domain consistent.

Just to drive you completely crazy Debian does its own form of session management and will completely ignore all alterations to the values who do within your PHP script. Lima's note on sessions and browser's tabs needs to be modified for my version of php as the call to uniqid '' will return an alphanumeric string. Hence the ereg statement should be: if! It doesn't appear in the documentation, or in anyone's comment here, but setting session.

Of course this still doesn't fix the problems associated with the garbage collector doing it's own thing. The best solution to that still appears to be changing session. IE issue :- when form target set to iframe source and after posting form content you are setting session variables, In this scenario if parent page having image src blank then session values set in iframe action page will be LOST surprisingly in IE ONLY.

Solution is quite simple don't keep Image src blank. This can also apply to the lifetime coming from a CLI invocation of a PHP script on that machine which happens to use the session.

This can be bothersome since even though you think all your pages include the same file which sets up the script, even a single PHP page which doesn't can invoke the GC and have the scripts deleted. A confirmation of behaviour, just in case this saves anyone else some time There is potentially a special case when session.