sessions and forms

[fumanshu]

I have an area on my site where users can log-in (after registration) and edit their profile using a form.

I use sessions to check wether users have logged in:

session_start();

// check to see if logged in

global $ok_user;
if (session_is_registered("ok_user"))
{
}
else
{
header("Location: http://www.domian.com/login.php");
exit;
}

not much to it...THE PROBLEM arises when they have submitted the form and there are errors found. My form validation script has a back button which would take them back to the form where they can amend their entries. However, when they press back, the form clears itself automatically and they have to re-enter everything from scratch!!

when I removed the session_start(); action from the form, the form worked fine when the back button is pressed...

Can anyone advise me on how I can get round this or if I am doing something wrong!

I hope this makes sense.

F

[stuartc1]

2 options I can think of:

1. the first and best is to pass the values using hidden fields.

2. The second is to either use <a href="javascript:history.back()">Back</a>
   if you are already using this and its not working you need to edit your php.ini file @
   session.cache_limiter = private, must-revalidate

hope this is of use.

[the_Igel]

Instead of really going back, you can generate your form populating it with values submitted by the user.

it's not much to change, it would be like

<FORM>
<input name="field1" <?if (isset($POST['field1']) echo ' value="'.$POST['field1'].'"';?>>
........
</FORM>

[fumanshu]

thanks guys,

I am in fact using javascript:history.back(); and have now changed the settings for

session.cache_limiter = private, must-revalidate

although they've changed in the php.ini file - do I need to restart php to apply changes as I can't see changes when I use

php_info();

?

[stuartc1]

if you are using apache then you may need to restart that. it usually doesnt need a restart with IIS.

[fumanshu]

sorted - thanx v.much

🙂