Take a look at this page, it's a clothe shop for kids. This is one of their items and I want to point out the size section. What we need to do here is to get all the sizes for this item and check whether the sizes are available or not. Right now all the sizes for this items are:
How can you say if the sizes are available or not?
Now take a look at this page first and check the sizes again:
This item has the following sizes:
18 months - Not Available
As you can see 18 months size is not available, it is indicated by the "Not Available" text next to the size.
What we need to do is go the page of an item, get the sizes and check the availability of each sizes. How can I do this in PHP?