CodeIgniter-cURL is a CodeIgniter library which makes it easy to do simple cURL requests and makes more complicated cURL requests easier too.
echo $this->curl->simple_get('http://example.com/');
echo $this->curl->simple_post('curl_test/message', array('message'=>'Sup buddy'));
For more up to date usage and in-depth examples check the CodeIgniter wiki page:
http://codeigniter.com/wiki/Curl_library/
If you'd like to request changes, report bug fixes, or contact the developer of this library, email email@philsturgeon.co.uk