Handling multiple sessions in PHP

Question

I have a simple web site with many PHP pages. Among them, some four pages use common variables, which I should store in the session object. But the thing is, these values should not be visible to other pages, so I decided to use session_name to create a new session. It will start a new session but these four pages are using the values from the old session, which is creating a problem when I try to print $_SESSION: it is an empty array after the start of my new session. I want this new session to retain the old values plus new values.

I'm not looking for this $_SESSION['page_group']['variable_name'] kind of solution as I cannot use arrays.

Welcome! I don't understand; why can't the other pages "see" the session variables? "Multiple initialized sessions per page" sounds like a bad idea. — Jared Farrish
– Jared Farrish, Commented Aug 18, 2012 at 18:18
@JaredFarrish thanks,bcoz i need all these variables which i created in these four pages to be unset on particular check how many variables i created what variables i created i really dont have control over them using other session i can unset all the variables in that session by simply destroying the new session — wh0
– wh0, Commented Aug 18, 2012 at 18:25
I take it storing it in a table in a database by the session ID, checking the URL for the "right" page, and setting whatever variables from the table, isn't possible? (Which you should also purge of expired sessions.) — Jared Farrish
– Jared Farrish, Commented Aug 18, 2012 at 18:37
@JaredFarrish that's a possible solution, but is it not possible the way which i told what are possible difficulties if i try to do it that way? i.e., using two sessions sorry if i'm asking to basics i'm really new to multiple sessions concept. — wh0
– wh0, Commented Aug 18, 2012 at 18:46

philyg · Accepted Answer · 2012-08-18 19:23:21Z

1

How about using something like

session_start();
$temp=$_SESSION;
session_write_close();
session_name("newname");
session_start();

and then merge $temp into (the new) $_SESSION (where needed)?

answered Aug 18, 2012 at 19:23

philyg

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wh0 Over a year ago

I have tried the above mentioned code but there is a problem.If i'm trying to print $_SESSION after the new session_start before merging with $temp still i'm getting the values which are set for earlier sessions.

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