Conditional based Display product Quantity

[prestashop-new]

Hi ,

 

I have a products with multiple attributes

 

For Example :

Product A has 4 options :

18oz (let this options quantity is 2)

19oz (let this options quantity is 4) 

20oz (let this options quantity is 6)

21oz (let this options quantity is 10)

I want to get the $product->quantity for the individual options BUT it is giving me the total numbers of all fours.

My pseudo code is for Product A:

 

if $product->quantity < 3 then do not display the Quantity

else if $product->quantity is between 4 to 8 then $product->quantity =$product->quantity/2

else if $product->quantity >8 then Display $product->quantity as it is.

 

Please guide.