On Sat, Mar 20, 2010 at 6:56 PM, Gary <gwp...@ptd.net> wrote:
> Adam
>
> Thank you for your reply.
>
> ""Are you checking to see if the post variable is set in the code that
> handles saving the form values to session variables? ""
>
> No, I not done anything about the post variable, frankly I thought the
> session variable would cover it. I tried your code
>
> if (isset($_POST['lend_fname'])){
> $_SESSION['lend_fname']=stripslashes($_POST['lend_fname']);
> }
>
> And it seems to work fine, the data seems to stay. Is there an easier
> method
> (perhaps putting the post or session variables into an array?
>
> Again thank you for your reply and your solution.
>
> Gary
>
>
> "Adam Richardson" <simples...@gmail.com> wrote in message
> news:e4d8ea9d1003201529p1ab72baei147549423f5e3...@mail.gmail.com...
> > On Sat, Mar 20, 2010 at 2:22 PM, Gary <gwp...@ptd.net> wrote:
> >
> >> I have this perplexing issue of session varibles getting dropped. It is
> >> a
> >> 4
> >> page form, the last page being a review page incase the submitter wants
> >> to
> >> change any of the information.If you go through the form, all of the
> >> information carries forward, and from the review page if you go back to
> >> edit, it is there, however is you go back to page 2, then to page 1,
> page
> >> one info is gone.It gets worse in that page 2 sessions drop (more likely
> >> over written) if you go from page 3 to 2.
> >>
> >> Each page is started with
> >>
> >> <?php if(!isset($_SESSION)) {
> >> session_start();
> >> }
> >>
> >> Session varible:
> >>
> >> $_SESSION['lend_fname']=stripslashes($_POST['lend_fname']);
> >>
> >> Calling the session varible to the input field for review
> >>
> >> <?php if (isset($_SESSION['lend_fname'])) {echo
> >> 'value="'.htmlentities($_SESSION['lend_fname']).'"';}?>
> >>
> >> The page starts at
> http://www.paulgdesigns.com/one2one/lend_bor_input.php
> >>
> >> Im confused as to why they keep getting dropped and how to stop it.
> >>
> >> Hopefully I have given enough information.
> >>
> >> Thank you
> >>
> >> Gary
> >>
> >>
> >>
> >> __________ Information from ESET Smart Security, version of virus
> >> signature
> >> database 4961 (20100320) __________
> >>
> >> The message was checked by ESET Smart Security.
> >>
> >> http://www.eset.com
> >>
> >>
> >>
> >>
> >>
> >> --
> >> PHP General Mailing List (http://www.php.net/)
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> >>
> >>
> >
> >
> > Are you checking to see if the post variable is set in the code that
> > handles
> > saving the form values to session variables? I can't tell if you're
> doing
> > this from the code you provided. If not, it's possible that when you are
> > returning to one of the earlier pages, you're attempting to again save
> the
> > form values even though the corresponding $_POST vars are empty. This
> > would
> > cause visiting page 2 to essentially delete the data previously posted
> > from
> > page 1.
> >
> > Using your example:
> >
> > // Only save if post variable present, which means
> > if (isset($_POST['lend_fname']))
> > {
> > $_SESSION['lend_fname']=stripslashes($_POST['lend_fname']);
> > }
> >
> > Also, some users will likely click the back button during the process,
> > which
> > brings up a funky message. You might try building one page that is
> > dedicated to saving all of the session variables, which then redirects to
> > the corresponding next page in the process.
> >
> > Adam
> >
> > --
> > Nephtali: PHP web framework that functions beautifully
> > http://nephtaliproject.com
> >
> >
> >
> > __________ Information from ESET Smart Security, version of virus
> > signature database 4961 (20100320) __________
> >
> > The message was checked by ESET Smart Security.
> >
> > http://www.eset.com
> >
> >
>
>
>
> __________ Information from ESET Smart Security, version of virus signature
> database 4961 (20100320) __________
>
> The message was checked by ESET Smart Security.
>
> http://www.eset.com
>
>
>
>
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
The session variables store what you tell them to store. The way your pages
were set up, it sounds like you always called the code that set the session
variable, even if the session variable was already set and even if there
were no POST variables sent.
People often do use sessions to preserve the state of a form's fields if the
form has multiple pages, just as you are doing. In this type of situation
someone can be visiting a page to 1) submit new data (POST data is present
such as when somebody clicks on the submit button in the previous page), or
2) review the data they've already entered (no POST data present, such as
when somebody uses the navigation on your page.) You have to check to see
which of the two possible types of page requests is occurring.
Using the code you have, you can probably just wrap the code that you have
that sets the session variables in an if block that checks for one of the
post variables you're expecting.
I'd recommend reading a tutorial or two on how PHP sessions work, such as
the following:
http://php.about.com/od/advancedphp/ss/php_sessions.htm
Adam
--
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http://nephtaliproject.com
