[Resolved] cant get sessions to store vars ??

thewomb

Im trying to set variables from a form and use them on other pages using sessions. if i set the variable ie. $cartid = session_id(); it works ok but when i try to use the form to set the vars nothing...

PHP 4.3.0 with register_globals "OFF"

[/code] PAGE1

<?
session_start();

session_register("bodycolor", "typecolour", "cartid");

$cartid = session_id();
$_SESSION["cartid"] = $cartid;
$_SESSION["bodycolour"] = $sel_body_color;
$_SESSION["typecolour"] = $sel_text_color;

?>



<H1>Set Your Color Preferences</h1>
<FORM METHOD="POST" ACTION="session_results.php.php">
<P><strong>Pick a Background Color:</strong><br>
<input type="radio" name="sel_body_color" value="#FFFFFF">white
<input type="radio" name="sel_body_color" value="#000000">black
<input type="radio" name="sel_body_color" value="#7FFF00">chartreuse
<input type="radio" name="sel_body_color" value="#B0C4DE">light steel blue
<input type="radio" name="sel_body_color" value="#FF6347">tomato	</p>

<P><strong>Pick a Text Color:</strong><br>
<input type="radio" name="sel_text_color" value="#FFFFFF">white
<input type="radio" name="sel_text_color" value="#000000">black
<input type="radio" name="sel_text_color" value="#F5DEB3">wheat
<input type="radio" name="sel_text_color" value="#BC8F8F">rosy brown
<input type="radio" name="sel_text_color" value="#00FF7F">spring green
</p>
<P><input type="submit" name="submit" value="Set Prefs"></p>


</FORM>
<br>
<? echo $_SESSION["cartid"]; ?>

</BODY>
</HTML>

[/code] PAGE2

<?

session_start();

// do something w/ POST vars

$_SESSION["bodycolour"] = $sel_body_color;
$_SESSION["typecolour"] = $sel_text_color;


?>



<html>
<HEAD>
<TITLE>Setting Prefs</TITLE>
</HEAD>



<BODY BGCOLOR="<? echo $_SESSION["bodycolor"]; ?>" TEXT="<? echo $_SESSION["textcolor"]; ?>">

<H1>Your Preferences Have Been Set</h1>

<P>As you can see, your BODY color is now <strong><? echo $_SESSION["bodycolor"]; ?></strong> and
  your TEXT color is now <strong><? echo $_SESSION["textcolor"]; ?></strong> and
  your php id is <? echo $_SESSION["cartid"]; ?></p>

</BODY>
</HTML>

ajmoore

You can not use session_register and the $SESSION[] variables together...it's one or the other depending on how register globals is set. If register_globals is OFF, then use $SESSION. If it's ON then use session_register. The best choice is to set register_globals to OFF and register session variables like this:

$_SESSION["varName"] = "data";

Then you can use that variable on subsequent pages like so:

print $_SESSION["varName"];

The output there would be "data".

thewomb

thanx, i understand that now but still cant get vars submited from a form to get stored in the session and displayed on current pages !

the $cartid ($cartid = session_id()😉 works ok as its been set in the code but the

$_SESSION["body_colour"] = $sel_body_color;
$_SESSION["type_colour"] = $sel_text_color;
?>

does not work as its being input by the user! any ideas why?

PAGE1

<?
session_start();
?>

<HEAD>
<?
$cartid = session_id();
$_SESSION["cartid"] = $cartid;
$_SESSION["body_colour"] = $sel_body_color;
$_SESSION["type_colour"] = $sel_text_color;
?>
</HEAD>

<body>

<H1>Set Your Color Preferences</h1>
<FORM METHOD="POST" ACTION="session_results.php.php">
<P><strong>Pick a Background Color:</strong><br>
<input type="radio" name="sel_body_color" value="#FFFFFF">white
<input type="radio" name="sel_body_color" value="#000000">black
<input type="radio" name="sel_body_color" value="#7FFF00">chartreuse
<input type="radio" name="sel_body_color" value="#B0C4DE">light steel blue
<input type="radio" name="sel_body_color" value="#FF6347">tomato	</p>

<P><strong>Pick a Text Color:</strong><br>
<input type="radio" name="sel_text_color" value="#FFFFFF">white
<input type="radio" name="sel_text_color" value="#000000">black
<input type="radio" name="sel_text_color" value="#F5DEB3">wheat
<input type="radio" name="sel_text_color" value="#BC8F8F">rosy brown
<input type="radio" name="sel_text_color" value="#00FF7F">spring green
</p>
<P><input type="submit" name="submit" value="Set Prefs"></p>


</FORM>
<br>
<? echo $_SESSION["cartid"]; ?>

</BODY>
</HTML>

PAGE2

<?

session_start();

// do something w/ POST vars

$_SESSION["body_colour"] = $sel_body_color;
$_SESSION["type_colour"] = $sel_text_color;


?>



<html>
<HEAD>
<TITLE>Setting Prefs</TITLE>
</HEAD>



<BODY BGCOLOR="<? echo $_SESSION["body_colour"]; ?>" TEXT="<? echo $_SESSION["type_colour"]; ?>">

<H1>Your Preferences Have Been Set</h1>

<P>As you can see, your BODY color is now <strong><? echo $_SESSION["bodycolour"]; ?></strong> and
  your TEXT color is now <strong><? echo $_SESSION["typecolour"]; ?></strong> and
  your php id is <? echo $_SESSION["cartid"]; ?></p>
<P>&nbsp;</p>
<P><? echo $_SESSION["x"]; ?></p>
</BODY>
</HTML>

gizzmo

I may be wrong, but part of the problem I think is that you're setting the session before you even get the a value passed to the variable.

what if you set the variable first
since the user is what's started the session and the session has to be a user given value;

have the form post to an other page and set the session after the user initiation. that might work for you.

agudiel

Hello thewomb,

First of all, why are you storing your session_id in the session variables?

$cartid = session_id(); 
$_SESSION["cartid"] = $cartid;

I think this is completely innecesary because you can retrieve the session id at anytime with session_id() once the session is started.

Then, i've never used session_register(), i just use

$_SESSION["bodycolour"] = $sel_body_color;

to define session variables and it works fine.

Are you running this script on your PC or a remote server?

If you are running it on your PC, make sure the PHP engine has WRITE access to the 'sessiondata' folder in your PHP directory (or whatever defined in your php.ini file).

This might also help:

http://www.phpfreaks.com/tutorials/41/0.php