Session mysql quick question

[sks1024]

I want to create a session and write the PHPSESSID in my db when the user enters my site. The script writes info to the db but just not the PHPSESSID why not .

<?php
session_start();
session_register($PHPSESSID); // FIRST LINES OF CODE ON PAGE



$Host = "localhost";
$User = "username";
$Password = "password";
$DBName = "dbname";
$TableName = "cart";


$Link = mysql_connect ($Host, $User, $Password) or die ("The database connection could not be established!");
$query = "INSERT INTO $TableName (PHPSESSID) values ('$PHPSESSID')";
$Result = mysql_db_query ($DBName, $query, $Link);


?>

[jacob_kochi]

The code is correct and it is working

[Weedpacket]

Well this line:
session_register($PHPSESSID);
is pretty pointless. Why store the session ID in a session variable when you need the session ID in the first place to get the values of session variables?

The session ID is provided by the browser when it makes a request; it's then available via session_id(). Certainly there's no reason to store it in the session.