Why not get the following page to query for that info then?
If you want to do it this way, you'll probably need sessions or cookies, e.g.
$row_Recordset1 = mysql_fetch_assoc ($Recordset1);
$_SESSION['City'] = $row_Recordset1['City'] . "\n";
Otherwise, the user would have to go to the next page via an appropriate hyperlink, or by submitting a form.