为什么此API请求适用于我的本地,但没有生产?

$result = file_get_contents('https://www.eventbrite.com/json/event_search?app_key=[MY_API_KEY]'); echo $result;

This logs stuff fine on my local environment, but not on production, where it returns completely blank. I also tried ssh'ing into my production server and running

curl https://www.eventbrite.com/json/event_search?app_key=[MY_API_KEY]

and that worked fine as well. What's going on? Could my hosting provider (Dreamhost) be blocking me somehow?