how to check if session id has been created

ceanth

I want to check if the session id has been created otherwise create one. I used this code but it doesnt seem to work:

<?
if(isset(session_id))
{
echo "session has started";
}
else {
<?
$time = time();
$date = $today = date("Ymd");
$id = $time + $date;

session_id($id);
session_start();
session_register(session_id);

print session_id();
echo "time = $time";
echo "date = $date";

I placed this at the top of the page with some html coding under it but the page appears blank for some reason, what is another way of doing this or am i doing something wrong?

eoghain

PHP's session functions take care of this for you. All you need to do is place [man]session_start/man at the beginning of any page where you need to access the session. If the user was already in a session it will be resumed, if not then a new one will be created.

ceanth

i want to create my own session id so i can reference it in the cart. i now have the following setup:

if (session_id()) {
echo "session has started.";
}
else{
session_start();
$time = time();
$date = $today = date("Ymd");
$id = $time + $date;

session_id($id);

print session_id();
echo "time = $time";
echo "date = $date";
}
?>

This works but when i hit refresh it generates a new session, how can i check if the session id has already been made?

ceanth

Another problem, how do i pass on this session_id i have created, if i use:

session_start();
print session_id();

it seems to be making a random one. i was thinking about

session_register(session_id);

but it doesnt seem to work

eoghain

I think you need to re-think your design. As far as I'm concerned there is no reason for you to use the SessionID for anything other that what it is being used for, managing your session. Just pass your cart around in the session, or create a CartID that you will pass around in the session to access the cart information.