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Bug #78155 session_start doesn't create session
Submitted: 2019-06-13 08:09 UTC Modified: -
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:0 (0.0%)
From: liangjian at oliveche dot com Assigned:
Status: Open Package: Session related
PHP Version: 7.2.19 OS: CentOS 7
Private report: No CVE-ID: None
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From: liangjian at oliveche dot com
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 [2019-06-13 08:09 UTC] liangjian at oliveche dot com
Description:
------------
---
From manual page: https://php.net/function.session-start
---
Request A and B are sent from the same browser at the same time (A prior to B) and use the same cookie.
A destroys session and B writes session in sequence.
B is blocked on 'session_start' and resumes after A destroys the session, but it does not create session or save the session variables.



Test script:
---------------
request A:
        session_start();
        sleep(5);
        session_destroy();

request B:
        // B will be blocked by A on the session file
        session_start(); // !!!return ok but not session file!!!
        // resume until A destroys(releases) it. but no session file and the 'uid' cannot save.
        $_SESSION["uid"] = 1;
        


Expected result:
----------------
The session file exists and session variable 'uid' is saved.

Actual result:
--------------
No session file.


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Last updated: Thu Sep 19 10:01:26 2019 UTC