PHP特區 : [分享]session 的使用必須有幾個要素

Warning: Unknown(): Your script possibly relies on a session side-effect which existed until PHP 4.2.3. 
Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled.
You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. 
in Unknown on line 0

<?
$name=$_POST["name"];
$password=$_POST["password"];
session_register("user");
$user=$name;
?>

session_register("variable");

session_start();
$_SESSION["variable"];