| curl | Curl connection interface | 
| curl_download | Download file to disk | 
| curl_echo | Echo Service | 
| curl_escape | URL encoding | 
| curl_fetch_disk | Fetch the contents of a URL | 
| curl_fetch_echo | Fetch the contents of a URL | 
| curl_fetch_memory | Fetch the contents of a URL | 
| curl_fetch_multi | Fetch the contents of a URL | 
| curl_fetch_stream | Fetch the contents of a URL | 
| curl_modify_url | Normalizing URL parser | 
| curl_options | List curl version and options. | 
| curl_parse_url | Normalizing URL parser | 
| curl_symbols | List curl version and options. | 
| curl_unescape | URL encoding | 
| curl_upload | Upload a File | 
| curl_version | List curl version and options. | 
| file_writer | Lazy File Writer | 
| find_port | Echo Service | 
| form_data | POST files or data | 
| form_file | POST files or data | 
| handle | Create and configure a curl handle | 
| handle_cookies | Extract cookies from a handle | 
| handle_data | Create and configure a curl handle | 
| handle_getheaders | Create and configure a curl handle | 
| handle_reset | Create and configure a curl handle | 
| handle_setform | Create and configure a curl handle | 
| handle_setheaders | Create and configure a curl handle | 
| handle_setopt | Create and configure a curl handle | 
| has_internet | Lookup a hostname | 
| ie_get_proxy_for_url | Internet Explorer proxy settings | 
| ie_proxy | Internet Explorer proxy settings | 
| ie_proxy_info | Internet Explorer proxy settings | 
| multi | Async Concurrent Requests | 
| multipart | POST files or data | 
| multi_add | Async Concurrent Requests | 
| multi_cancel | Async Concurrent Requests | 
| multi_download | Advanced download interface | 
| multi_fdset | Async Concurrent Requests | 
| multi_list | Async Concurrent Requests | 
| multi_run | Async Concurrent Requests | 
| multi_set | Async Concurrent Requests | 
| new_handle | Create and configure a curl handle | 
| new_pool | Async Concurrent Requests | 
| nslookup | Lookup a hostname | 
| parse_date | Parse date/time | 
| parse_headers | Parse response headers | 
| parse_headers_list | Parse response headers | 
| send_mail | Send email |