note 7944 added to session_register

Registering a variable creates a global instance of the variable, but it does not automatically pull it into the local scope. So to set a registered variable within a function: <? session_start(); function test( $val ) { session_register( "somevar" ); // $somevar = $val; //-- This will NOT set the value of the registered somevar, instead it creates a local, albeit unrelated, instance $GLOBALS['somevar'] = $val; //This sets the registered $somevar } test( "A value" ); ?> http://www.php.net/manual/function.session-register.php