curl                    Curl connection interface
curl_download           Download file to disk
curl_escape             URL encoding
curl_fetch_memory       Fetch the contents of a URL
curl_options            List curl version and options.
form_file               Upload files with form
handle                  Create and configure a curl handle
handle_cookies          Extract cookies from a handle
ie_proxy                Internet Explorer proxy settings
multi                   Async Multi Download
nslookup                Lookup a hostname
parse_date              Parse date/time
parse_headers           Parse response headers