# Class Header

Standard Header Field names as defined in RFC2616.

Namespace: OpenCloud\Common\Constants
Package: OpenCloud\Common\Constants
Link: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
Located at OpenCloud/Common/Constants/Header.php

Constants summary
`string` | `ACCEPT` | `'Accept'` | #
`string` | `ACCEPT_CHARSET` | `'Accept-Charset'` | #
`string` | `ACCEPT_ENCODING` | `'Accept-Encoding'` | #
`string` | `ACCEPT_LANGUAGE` | `'Accept-Language'` | #
`string` | `ACCEPT_RANGES` | `'Accept-Ranges'` | #
`string` | `AGE` | `'Age'` | #
`string` | `ALLOW` | `'Allow'` | #
`string` | `AUTHORIZATION` | `'Authorization'` | #
`string` | `CACHE_CONTROL` | `'Cache-Control'` | #
`string` | `CONNECTION` | `'Connection'` | #
`string` | `CONTENT_ENCODING` | `'Content-Encoding'` | #
`string` | `CONTENT_LANGUAGE` | `'Content-Language'` | #
`string` | `CONTENT_LENGTH` | `'Content-Length'` | #
`string` | `CONTENT_LOCATION` | `'Content-Location'` | #
`string` | `CONTENT_MD5` | `'Content-MD5'` | #
`string` | `CONTENT_RANGE` | `'Content-Range'` | #
`string` | `CONTENT_TYPE` | `'Content-Type'` | #
`string` | `DATE` | `'Date'` | #
`string` | `ETAG` | `'ETag'` | #
`string` | `EXPECT` | `'Expect'` | #
`string` | `EXPIRES` | `'Expires'` | #
`string` | `FROM` | `'From'` | #
`string` | `HOST` | `'Host'` | #
`string` | `IF_MATCH` | `'If-Match'` | #
`string` | `IF_MODIFIED_SINCE` | `'If-Modified-Since'` | #
`string` | `IF_NONE_MATCH` | `'If-None-Match'` | #
`string` | `IF_RANGE` | `'If-Range'` | #
`string` | `IF_UNMODIFIED_SINCE` | `'If-Unmodified-Since'` | #
`string` | `LAST_MODIFIED` | `'Last-Modified'` | #
`string` | `LOCATION` | `'Location'` | #
`string` | `MAX_FORWARDS` | `'Max-Forwards'` | #
`string` | `PRAGMA` | `'Pragma'` | #
`string` | `PROXY_AUTHENTICATION` | `'Proxy-Authenticate'` | #
`string` | `PROXY_AUTHORIZATION` | `'Proxy-Authorization'` | #
`string` | `RANGE` | `'Range'` | #
`string` | `REFERER` | `'Referer'` | #
`string` | `RETRY_AFTER` | `'Retry-After'` | #
`string` | `SERVER` | `'Server'` | #
`string` | `TE` | `'TE'` | #
`string` | `TRAILER` | `'Trailer'` | #
`string` | `TRANSFER_ENCODING` | `'Transfer-Encoding'` | #
`string` | `UPGRADE` | `'Upgrade'` | #
`string` | `USER_AGENT` | `'User-Agent'` | #
`string` | `VARY` | `'Vary'` | #
`string` | `VIA` | `'Via'` | #