Here, I will show you the code to get the most viewed products in Magento. The function addViewsCount() filters the products with their views count.

Here is the code:-

Get overall Most viewed products
public function getMostViewedProducts()
{     
    /**
     * Number of products to display
     * You may change it to your desired value
     */
    $productCount = 5;
    
    /**
     * Get Store ID
     */
    $storeId    = Mage::app()->getStore()->getId();     
    
    /**
     * Get most viewed product collection
     */
    $products = Mage::getResourceModel(‘reports/product_collection’)
        ->addAttributeToSelect(‘*’)    
        ->setStoreId($storeId)
        ->addStoreFilter($storeId)
        ->addViewsCount()
        ->setPageSize($productCount);
    
    Mage::getSingleton(‘catalog/product_status’)
            ->addVisibleFilterToCollection($products);
    Mage::getSingleton(‘catalog/product_visibility’)
            ->addVisibleInCatalogFilterToCollection($products);
    
    return $products;
}

Get Most viewed products for current category
public function getMostViewedProducts()
{ 
    // number of products to display
    $productCount = 5;
    
    // store ID
    $storeId    = Mage::app()->getStore()->getId();     
    
    // get most viewed products for current category
    $products = Mage::getResourceModel(‘reports/product_collection’)
        ->addAttributeToSelect(‘*’)    
        ->setStoreId($storeId)
        ->addStoreFilter($storeId)
        ->addViewsCount()
        ->addCategoryFilter(Mage::registry(‘current_category’))
        ->setPageSize($productCount);
    
    Mage::getSingleton(‘catalog/product_status’)
            ->addVisibleFilterToCollection($products);
    Mage::getSingleton(‘catalog/product_visibility’)
            ->addVisibleInCatalogFilterToCollection($products);
    
    return $products;
}

Get Most viewed products for last 30 days
public function getMostViewedProducts()
{ 
    // number of products to display
    $productCount = 5;
    
    // store ID
    $storeId    = Mage::app()->getStore()->getId();
    
    // get today and last 30 days time
    $today = time();
    $last = $today – (60*60*24*30);

    $from = date(“Y-m-d”, $last);
    $to = date(“Y-m-d”, $today);
    
    // get most viewed products for last 30 days
    $products = Mage::getResourceModel(‘reports/product_collection’)
        ->addAttributeToSelect(‘*’)    
        ->setStoreId($storeId)
        ->addStoreFilter($storeId)
        ->addViewsCount()
        ->addViewsCount($from, $to)
        ->setPageSize($productCount);
    
    Mage::getSingleton(‘catalog/product_status’)
            ->addVisibleFilterToCollection($products);
    Mage::getSingleton(‘catalog/product_visibility’)
            ->addVisibleInCatalogFilterToCollection($products);
    
    return $products;
}

Hope this helps and thanks for reading.
– See more at: http://blog.chapagain.com.np/magento-how-to-get-most-viewed-products/#sthash.s6biTMMA.dpuf