Facebook Pixel Code for Magento Stores

head.phtml

<?php
/* **** Pixel Facebook ****
   app/design/frontend/<yourtheme>/default/template/page/html/head.phtml 
   Magento ver 1.9.1.0 
   content_ids can contains ID or SKU, what's on your facebook catalog?
*/
?>

<script>
    !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
    n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
    n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
    t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
    document,'script','//connect.facebook.net/en_US/fbevents.js');
    fbq('init', '<your_facebook_pixel_code>');
    fbq('track', "PageView");

<?php
    $request = $this->getRequest();
    $module = $request->getModuleName();
    $controller = $request->getControllerName();
    $action = $request->getActionName();
    $pageIdentifier = Mage::app()->getFrontController()->getAction()->getFullActionName();
    /* VIEW CONTENT ACTION */
    if(Mage::registry('current_product')) {
        $product = Mage::registry('current_product');
        $product_price_with_taxes = Mage::helper('tax')->getPrice($product, $product->getPrice());
        $product_id = $product->getId();
        $product_sku = $product->getSku();
        $product_price = $product->getPrice();
        $product_name = $product->getName();
        echo "fbq('track', 'ViewContent', {
            content_ids: ['".$product_sku."'],
            content_type: 'product',
            value: ".$product_price_with_taxes.",
            content_name: '".$product_name."',
            currency: 'EUR'
         });";
    }

    /* SEARCH ACTION */
    if($controller == 'result' || $controller =='advanced') {
        echo "fbq('track', 'Search', {
            search_string: '".$request->getQuery('q')."',
        });";
    }
    // Customer registration
    /*
    if($module == 'customer' && $controller == 'account' && $action == 'index'){
        echo "fbq('track', 'CompleteRegistration')";
    }
    */
    /* ADD TO CART ACTION */
    if($module == 'checkout' && $controller == 'cart' && $action == 'index') {
        $productID=Mage::getSingleton('checkout/session')->getLastAddedProductId(true);
        $session= Mage::getSingleton('checkout/session');
        foreach($session->getQuote()->getAllItems() as $item){
            $productID = $item->getProductId();
            $productSku = $item->getSku();
            $productName = $item->getName();
            $productQty = $item->getQty();
            $price_with_taxes = Mage::helper('tax')->getPrice($item, $item->getPrice());
        }
        echo "fbq('track', 'AddToCart',{
            content_ids: ['".$productSku."'],
            content_type: 'product',
            value: ".$price_with_taxes.",
            content_name: '".$productName."',
            currency: 'EUR'
        });";
    }
    /* WISHLIST ACTION */
    /*
    if($module == 'wishlist') {
        echo "fbq('track', 'AddToWishlist');";
    }
    */
    
    /* CHECKOUT START ACTION */
    if(Mage::getURL('checkout/onepage') == Mage::helper('core/url')->getCurrentUrl()) {
        echo "fbq('track', 'InitiateCheckout');";
        // As the onepagecheckout don't have a specific page for add billing info, i placed the tracker here
        // echo "fbq('track', 'AddPaymentInfo');";
    }
     /* PURCHASE ACTION */
    if (Mage::getURL('checkout/onepage/success/') == Mage::helper('core/url')->getCurrentUrl()){
        $order = Mage::getModel('sales/order')->load(Mage::getSingleton('checkout/session')->getLastOrderId());
        $grandTotal = $order->getGrandTotal();
        $totalFormatted = number_format($grandTotal, 2, '.', ',');
        $orderItems = $order->getItemsCollection();
        $array_of_ids ="";
        $array_of_names="";
        $array_of_sku="";
        foreach ($orderItems as $item){
            $product_id = $item->product_id;
            $product_sku = $item->getSku();
            $product_name = $item->getName();
            $array_of_ids = $array_of_ids. "'".$product_id."',"; //append id at id_list
            $array_of_sku = $array_of_sku. "'".$product_sku."',";//append sku at sku_list
            $array_of_names = $array_of_names. "'".$product_name."',";//append name at name_list
        }
        $array_of_ids=substr($array_of_ids, 0, -1);
        $array_of_sku=substr($array_of_sku, 0, -1);
        $array_of_names=substr($array_of_names, 0, -1);
        echo " fbq('track', 'Purchase', {
                value:".$totalFormatted.",
                currency:'EUR',
                content_type:'product',
                num_items:".count($orderItems).",
                content_name:[".$array_of_names."],
                content_ids:[".$array_of_sku."]
             })";
     }
 ?>
</script>
<noscript><img height="1" width="1" style="display:none"
src=" https://www.facebook.com/tr?id=<your_facebook_pixel_code>&ev=PageView&noscript=1"
/></noscript>