MQL - checking whether a topic has an associated image

Question

I am using the Freebase Image Service eg.

Image of Arnie

However, many of the topics don't have images eg.

Lord Voldemort

How do I check the topic using MQL (and PHP) to see whether it has an associated image?

Answer 1

Look at the /common/topic/image property - for example,

{
  "id": "/en/snow_leopard",
  "/common/topic/image": [{
    "id":   null,
    "name": null
  }]
}​

Query editor link - wrapping that into PHP should be easy.