i got one api after google search,
here is the link send-tweets
How to use this api,
i should install any thing ,
what is the procedure for this api,
Use this OAuth library: http://github.com/abraham/twitteroauth
$parameters = array('status' => date('Hi'));
$status = $connection->post('statuses/update', $parameters);
That is the post to wall method in the Twitter OAuth library, you will need to authenticate with OAuth first, the code is provided in the examples section of the above download.
Its using "curl".
here is the Twitter dev site with libraries. Under Google Code you can find a Twitter API class.