Edit report at https://bugs.php.net/bug.php?id=70871&edit=1
ID: 70871
Comment by: narf at devilix dot net
Reported by: jacky at xsteach dot com
Summary: session_regenerate_id(): Failed to create session
ID: user (path: )
Status: Assigned
Type: Bug
Package: Session related
Operating System: mac os x
PHP Version: 7.0.0RC6
Assigned To: yohgaki
Block user comment: N
Private report: N
New Comment:
@yasuo
Yep, that's the session handler in question.
I guess I'll have to wait for your error messages patch ...
Previous Comments:
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[2015-11-13 05:23:28] bellosthomas at gmail dot com
I was also getting a fatal error (check comment above), with a custom session handler. After
yohgaki's comment about the return value of the read() method, which needs to return a string,
I checked my session handler and I saw I was returning boolean false in some cases. Casting the
return value to string, solved it.
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[2015-11-13 01:20:26] yohgaki@php.net
Oops, you are getting other kind of error.
session_regenerate_id(): Failed to create session ID: user (path: <value of
session.save_path>)
This error is raised by multiple reasons. The error messages are better to modify so that users can
distinguish the cause. Anyway, it may be raised if
- new session ID creation is failed. (Very unlikely)
- opening save handler is failed.
- session ID collision is detected and failed. (Very unlikely)
- session read with new session ID is failed.
I'll modify error messages to distinguish the cause of your problem.
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[2015-11-13 00:44:36] yohgaki@php.net
@narf
Is this the save handler?
https://github.com/bcit-ci/CodeIgniter/blob/develop/system/libraries/Session/drivers/Session_redis_driver.php#L162
I haven't looked into detail and don't understand the handler fully, but this function may
be the cause of bug.
Returning FALSE on read will raise the error.
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[2015-11-13 00:39:33] yohgaki@php.net
@narf
OK. Could tell me where I can look at the save handler code?
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[2015-11-12 18:00:05] narf at devilix dot net
@yasuo
I didn't say that session_start() issues that message.
What I'm saying is that calling session_regenerate_id() *immediately after* session_start(),
would issue this:
session_regenerate_id(): Failed to create session ID: user (path: <value of
session.save_path>)
And I'm kind of proxy-ing a bug report that was submitted to me here: https://github.com/bcit-ci/CodeIgniter/issues/4230
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