Here is my code:
$sql = \'SELECT * FROM \' . $wpdb->base_prefix . \'item WHERE uname = "\'. $_POST[\'login_name\'] . \'" \';
$result = $wpdb->get_results($sql) or die(mysql_error());
foreach($result as $results) {
$results->salt;
$results->password;
}
echo $sal->$results[0];
echo $pwd->$results[1];