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Re: session question [message #177666 is a reply to message #177665]

Thu, 12 April 2012 16:56

Scott Johnson
Messages: 196
Registered: January 2012

Karma:

Senior Member

On 4/12/2012 9:43 AM, William Gill wrote:
> I have a site with an input form that recursively calls itself via
> action="<?php echo $_SERVER['PHP_SELF']; ?>", and a couple links with
> url encoded data that indicate simple selections w/o using a form. It
> uses different include('file'); statements based on the progress and/or
> choices previously made, and it works fine, but is a little complicated
> to track "state" when troubleshooting, updating, or changing.
>
> I am thinking of using a session approach which would be simpler to
> follow, but have never used sessions on a page that is recursively called.
>
> First since session_start() would be called every iteration, that will
> cause an error unless I encapsulate it in an if loop to see if the
> session already exists. Is this the preferred method?
>
> Second, when the user is finished and receives an acknowledgement I plan
> to call a session_unset() to clear things up so that if they want to do
> it again, they are beginning with a clean slate. Again, is this the
> preferred method?
>
>

You won't get an error for calling session_start on a page that calls
itself 'unless' you have it being called multiple times such as in one
of your include files.

Each call to that page whether it is from another page or itself is a
separate new call to that page and the session_start does not carry over.

Do not use session_unset unless you are on an old PHP install (4) i
think, in which case get it updated

use the unset() method.

But I would not use that solely.

I personally empty each $_SESSION variable
with $_SESSION = array();

I guess you could use session_destroy() but I have not used this and am
not sure how it behaves.

Sure someone will have some more info on this.

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[Message index]

		session question By: William Gill on Thu, 12 April 2012 16:43
		Re: session question By: Scott Johnson on Thu, 12 April 2012 16:56
		Re: session question By: M. Strobel on Thu, 12 April 2012 17:43
		Re: session question By: M. Strobel on Thu, 12 April 2012 17:59
		Re: session question By: Captain Paralytic on Fri, 13 April 2012 09:18
		Re: session question By: Denis McMahon on Fri, 13 April 2012 13:27
		Re: session question By: William Gill on Fri, 13 April 2012 17:51
		Re: session question By: Jerry Stuckle on Fri, 13 April 2012 19:54
		Re: session question By: William Gill on Fri, 20 April 2012 06:40
		Re: session question By: M. Strobel on Fri, 20 April 2012 08:55
		Re: session question By: Erwin Moller on Fri, 20 April 2012 09:25
		Re: session question By: Jerry Stuckle on Fri, 20 April 2012 12:11
		Re: session question By: William Gill on Fri, 20 April 2012 14:59
		Re: session question By: William Gill on Fri, 20 April 2012 15:32
		Re: session question By: Michael Fesser on Fri, 20 April 2012 15:50
		Re: session question By: William Gill on Fri, 20 April 2012 16:04
		Re: session question By: Tim Streater on Fri, 20 April 2012 17:17
		Re: session question By: M. Strobel on Fri, 20 April 2012 18:08
		Re: session question By: Tim Streater on Fri, 20 April 2012 19:36
		Re: session question By: William Gill on Sat, 21 April 2012 22:13
		Re: session question By: Jerry Stuckle on Fri, 20 April 2012 18:22
		Re: session question By: William Gill on Fri, 20 April 2012 19:04
		Re: session question By: The Natural Philosoph on Fri, 20 April 2012 21:09
		Re: session question By: Michael Fesser on Fri, 20 April 2012 19:13
		Re: session question By: Jerry Stuckle on Fri, 20 April 2012 19:45
		Re: session question By: Tim Streater on Fri, 20 April 2012 22:11
		Re: session question By: The Natural Philosoph on Fri, 20 April 2012 22:23
		Re: session question By: Tim Streater on Sat, 21 April 2012 12:14
		Re: session question By: Jerry Stuckle on Fri, 20 April 2012 22:45
		Re: session question By: Michael Fesser on Fri, 20 April 2012 23:24
		Re: session question By: The Natural Philosoph on Sat, 21 April 2012 00:28

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