Using Global Variable as Price for Variant

Question

I'm trying to set the price of the item being added to the cart by a global variable, which is a number field. Here's what I have:

craft()->on('commerce_lineItems.onPopulateLineItem', function($event)
{
    $lineItem = $event->params['lineItem'];
    $globalPrices = craft()->globals->getSetByHandle('defaultPrices');
    $itemPrice = var_dump($globalPrices->fontStylePrice);
    $lineItem->price = $itemPrice;

This just results in a $0 price being set, and not the value from the Global Variable. But again, $lineItem->price = 25 works fine. Any suggestions?

Answer 1

Removed the var_dump() from setting the variable as follows, and it works perfectly:

craft()->on('commerce_lineItems.onPopulateLineItem', function($event)
{
    $lineItem = $event->params['lineItem'];
    $globalPrices = craft()->globals->getSetByHandle('defaultPrices');
    $itemPrice = $globalPrices->fontStylePrice;
    $lineItem->price = $itemPrice;

Answer 2

Just a wild guess really, but it feels like this might be a type issue - is the price you're getting back from the global a float? Or is it a string maybe?

lineItem->price = floatval($itemPrice);

...might be what you need?