<?php
require_once('../wp-load.php' );
global $wpdb;

$categories_enabled = array();
$categories_enabled[] = 23;
$categories_enabled[] = 22;
$categories =  get_categories();  

$values = array();
foreach  ($categories as $category) {
    if (in_array($category->term_id, $categories_enabled)) {
	$values[] = $category;
    }
}
echo json_encode($values);
?>