Bug #74514 [Com]: PHP Warning: session_name(): Cannot change session name when headers already

From: Date: Sat, 29 Apr 2017 23:05:14 +0000
Subject: Bug #74514 [Com]: PHP Warning: session_name(): Cannot change session name when headers already
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-208859@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=74514&edit=1

 ID:                 74514
 Comment by:         spam2 at rhsoft dot net
 Reported by:        spam2 at rhsoft dot net
 Summary:             PHP Warning:  session_name(): Cannot change session
                     name when headers already
 Status:             Feedback
 Type:               Bug
 Package:            Session related
 Operating System:   Linux
 PHP Version:        master-Git-2017-04-29 (Git)
 Block user comment: N
 Private report:     N

 New Comment:

http://php.net/manual/en/function.session-name.php

> session_name() returns the name of the current session. If name is given, 
> session_name() will update the session name and return the old session name
_____________

$session_name = session_name();

do you see a name given here?


Previous Comments:
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[2017-04-29 23:01:28] spam2 at rhsoft dot net

just run a CLI script with no session started - the line from te origin report is one of many
thousands and it's intention is to work environment independet and get/send the correct cookie
for thousands of curl calls

i will rewrite the code now to "ini_get('session.name'); but that don't change
the fact that there is some BC change

------------------------------------------------------------------------
[2017-04-29 22:51:57] daverandom@php.net

Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.



------------------------------------------------------------------------
[2017-04-29 22:32:21] spam2 at rhsoft dot net

Description:
------------
[30-Apr-2017 00:16:55 Europe/Vienna] PHP Warning:  session_name(): Cannot change session name when
headers already sent in /Volumes/dune/www-servers/cms/cms/autotests/suite/backend.php on line 40

for *sure* not

line 40 is "$session_name = session_name();"

nobody is asking here for any change



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