Session Help !!!

[sacfreak]

hi,
i have a common php page which initialises a few session variables. this is included in two other PHP pages. in one page i check the value of one particular variable. if it is one i do some processing.. in common i make it one (if it has not already being set). i use the new values of the other variables in the 2nd PHP page... but both scripts seem to break the
if (!isset()) in common and reinitialise variables everytime, thus causing problems in other PHP scripts....i have included important parts of Common.php and the 1st PHP file....Please help..as i cannot do without sessions...

session_start();
if (!isset($SESSION["sessDetail"],$SESSION["sessCartVis"],$SESSION["sessVARS"]))
{
$SESSION["sessAllItems"]="";
$SESSION["sessAllCost"]="";
$SESSION["sessVARS"]="";
//$sessCartIdx=1;
$_SESSION["sessDetail"]=1; //session that needs to be initalised
}

1st PHP page
include "common_classes1.php";
session_start();
setcon();

if ($SESSION["sessDetail"]==1)
{
echo"SessDetail:- "; echo $SESSION["sessDetail"]; echo"<br>";
$SESSION["sessDetail"]=2; //this gets reinitialised to 1 $SESSION["sessCategory"]=$POST["sltCategory"];
$SESSION["sessVARS"]=$HTTP_POST_VARS;
}

[rharter]

instead of using isset try comparing the session variable to NULL. I ran into this a while ago and it is a bug in PHP at least up to 4.2.2. Let me know if this works:

if ($_SESSSION('variable) == NULL) {
// do stuff
.....
}

[ScubaKing22]

I actually ran into this problem a while back while making a login script. What I did was create a session name such as session_name("whatever"); and call it back on every script. Note that this should go BEFORE session_start();. One other thing I also did was session_register("varname"); for EVERY variable on EVERY page and that seemed to work for me. Hope this helps.