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Re: session question [message #177670 is a reply to message #177665]

Thu, 12 April 2012 17:43

M. Strobel
Messages: 386
Registered: December 2011

Karma:

Senior Member

Am 12.04.2012 18:43, schrieb William Gill:
> 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?
>

call session_start() at the beginning of your script.

Do not use session_unset(), it is old as Scott said. Assign null to your session
variables, or unset() them, but do not unset($_SESSION)

See
http://groups.google.com/group/comp.lang.php/browse_thread/thread/8b3b25491 e095a49/76d6a3eeb680f503

there is an example of session usage.

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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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