I've been pulling the latest tweet via search.atom in Twitter.
$feed = "http://search.twitter.com/search.atom?q=from%3A" . $username_for_feed . "&rpp=" . $limit;
The problem is lately it just started showing no content. I went and looked at different URLs and it isn't showing, only for certain usernames??
http://search.twitter.com/search.atom?q=from:kevinbacon&rpp=1
That works for me.
http://search.twitter.com/search.atom?q=from:zesty_one&rpp=1
Here, both accounts have tweets, and when I add most_recent, it makes no difference, so I can't see how date has anything to do with it.
The search atom feed only goes back 7 days. So if that user with a blank feed hasn't tweeted for 7 days it won't show anything.