Best way to retrieve a session id

Is this the correct way to retrieve a session id for a new or returning visitor?

if (!isset($_SESSION)){
	session_start();
}

if(!isset($_REQUEST['PHPSESSID'])){
	$log_session = session_id();
}else{
	$log_session = $_REQUEST['PHPSESSID'];
}

PHP:

Thanks

 

The best way would be just to use $log_session = session_id();

because user can actually modify PHPSESSID using a cookie editor.. so to be safe just user session_id()

 

Assign a name value to the session, then call that session later in the script. Example:

session_start();
if(isset($_SESSION['views'])) $_SESSION['views']=$_SESSION['views']+1;
else $_SESSION['views']=1;
echo “Pageviews:”. $_SESSION['views']

Code (markup):

Here's where I got the info on sessions: PHP Sessions

 

Thanks for your help - I will go with session_id()

 

Make sure you call session_start() regardless of starting a new session or continuing a previous one.

 

Great - Thanks!

So this ...

Is now...

session_start();
$log_session = session_id();

PHP:

And during testing the php notice "Notice: A session had already been started - ignoring session_start()" can just be suppressed.

Thanks again for your help, that has cleared it up.