Magento: Get all categories name and url of a product

This article shows how you can fetch all the categories related/associated with a particular product.

$product->getCategoryIds() function gives array of category ids with which the product is associated to. We can loop through this array and load each category to get the category name and url.

// Load product
$productId = 1; // YOUR PRODUCT ID
$product = Mage::getModel('catalog/product')->load($productId);

// get category ids of the product
$categoryIds = $product->getCategoryIds();

foreach($categoryIds as $categoryId) {
    $category = Mage::getModel('catalog/category')->load($categoryId);
?>
    Category: <a href="<?php echo $category->getCategoryUrl() ?>"><?php echo $category->getName() ?></a> <br/>
<?php
}
?>

Instead of loading category inside the loop, we can fetch categories of a product using category collection model as well. This is a better way than the above one.

// Load product
$productId = 1; // YOUR PRODUCT ID
$product = Mage::getModel('catalog/product')->load($productId);

$categoryIds = $product->getCategoryIds();

$categories = Mage::getModel('catalog/category')
                    ->getCollection()
                    ->addAttributeToSelect("*")
                    ->addAttributeToFilter('entity_id', $categoryIds);

foreach ($categories as $category) {
    echo $category->getName() . '<br>';
}
?>

Hope this helps. Thanks.