PHP Function to return string

Question

I am fairly new to PHP. I have a function which checks the cost of price. I want to return the variable from this function to be used globally:

Answer 1

You should simply store the return value in a variable:

$deliveryPrice = getDeliveryPrice(12);
echo $deliveryPrice; // will print 20

The $deliveryPrice variable above is a different variable than the $deliveryPrice inside the function. The latter is not visible outside the function because of variable scope.