Web服务最佳性能：使用少量数据进行多次调用或使用大量数据进行少量调用

Question

I have to consume a WebService for getting products from one provider in my webpage written in PHP.

I have two options:

1. There are 1 operation for getting the data of ALL products, I can call this operation four times (one per language I need) and parse the data to obtain the data related to the products I want; the problem is that PHP runs out of memory...and I need to notably increase the memory_limit in this script.

2. I can call 1 operation for getting one product data...then if I need to fetch 2500 products, I would make 2500 calls * 4 (for each language), resulting in 10.000 calls...at least it would be no memory problems.

Which options is better?

Edit: This operation is intended to be executed only one time per year.