Tools, FAQ, Tutorials:
Testing the Session Garbage Collection Process in PHP
How To Test the Session Garbage Collection Process in PHP?
✍: FYIcenter.com
In order to test the session garbage collection process, you need to change the settings to expire session variables in 10 seconds and run the process on every request:
session.gc_probability = 1 session.gc_divisor = 1 session.gc_maxlifetime = 10
If you re-run the first_page.php and next_page.php scripts presented in the previous tutorials, you will see some thing like:
Query string of the incoming URL: Cookies received: PHPSESSID = grm557vicj1edmiikgsa8hbd11 Value of MyLogin has been retrieved: FYICenter Value of MyColor has been retrieved: Blue
Wait for 10 seconds, and start another browser window to run first_page.php. This is to trigger the session garbage collection process to remove values stored in session grm557vicj1edmiikgsa8hbd11.
Go back to the first browser window on second_page.php, and click the browser refresh button, you will get something like:
Query string of the incoming URL: Cookies received: PHPSESSID = grm557vicj1edmiikgsa8hbd11 Value of MyLogin has been retrieved: Value of MyColor has been retrieved:
As you can see, session values are gone, the browser is still sending the same session ID as a cookie, but the all session values are expired (actually, the session file is removed by the garbage collection process).
⇒ Setting session.gc_maxlifetime Properly in PHP
⇐ Timeout Period on Session Values in PHP
2016-10-24, 1205👍, 0💬
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