How do I call tweets of a certain tag, but not retweets? Only original posts


I hope this was in the right category.

Right now I have a very simple HTML form and a php script. You enter a term/tag, and it spits out the recent tweets.

Before I manipulate this further, I want to eliminate retweets from my results. I would only like original posts.

I am prettttty novice with this stuff but maybe you can help. I’d share the URL here, but it is under a domain of my real name - if you need to see it let me know.