Re: [PHP] SESSION ID Problem.
- Date: Thu, 2 Nov 2017 17:21:43 -0400
- From: Bastien Koert <phpster@xxxxxxxxx>
- Subject: Re: [PHP] SESSION ID Problem.
I concur, I’ve had the same problem with disk space issues.
> On Nov 2, 2017, at 12:53 PM, Adam Jon Richardson <adamjonr@xxxxxxxxx> wrote:
> On Thu, Nov 2, 2017 at 12:46 PM, Adam Jon Richardson <adamjonr@xxxxxxxxx>
>>> On Thu, Nov 2, 2017 at 12:39 PM, Tedd Sperling <tedd@xxxxxxxxxxxx> wrote:
>>> Hi gang:
>>> Normally when I want to start a session, I use --
>>> <?php session_start();
>>> — and this has worked for me for years.
>>> Starting last semester, my PHP class started having problems with session
>>> The problem occurs as follows:
>>> Student “A" runs their code (using session_start() ) and everything works.
>>> Student “B" runs their code (using session_start() ) and the server
>>> reports "Permission denied (13) in…” — AND displays the exact same session
>>> ID as the first student (Student A).
>>> Oddly enough, after a while, things work out and the server starts
>>> generating different session ID's for each student.
>>> Anyone have an ideas as to why this happens?
>>> Keep in mind, that both students have their own separate account on the
>>> school's server AND they are running their own scripts . Even my scripts
>>> are not immune to this problem. For example try running my script here:
>>> Currently, my script generates:
>>> Warning: session_start(): open(/var/cpanel/php/sessions/
>>> ea-php56/sess_qsabg71cg8u6i2dfgpsbmfth74, O_RDWR) failed: Permission
>>> denied (13) in /home/sperlt/public_html/citw185/examples/session-page1.php
>>> on line 3
>>> However, yesterday the script ran without error.
>> Sometimes this can mean that there are disk space issues. I've had this
>> issue in the past, and one of the answers on SO (by Haz) suggests the same
> And, as David Goodwin noted on that same SO link, it seems like I also had
> a garbage collection issue long ago that proved just as unpredictable. If
> the issue persists, you could always use a custom handler with MySQL or
> SQLite to circumvent it just to ensure your students can avoid issues until
> you can figure out the issues. Sometimes I completely purge the tmp
> directory (or whatever directory is being written to) just to make sure
> there aren't any file permission issues.
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