Check if product exists in more than one category

Question

I have the following code in view.phtml that checks if a product is in a specific category (2495), and if it is, outputs some text.

EXISTING CODE

<?php if (Mage::registry('current_category') && Mage::registry('current_category')->getId() == 2495) { ?>
CONTENT GOES HERE...
<?php } ?>

How do I go about checking if the product exists in more than one category (e.g. 2495, 2496 & 2497)?

Answer 1

$categoryIds = array(2495, 2496, ...);
if (Mage::registry('current_category') && in_array (Mage::registry('current_category')->getId(), $categoryIds)) {
     //code here
}