Parse from an environment block (represented as an associate array).
The CGI "AUTH_TYPE" meta-variable.
The CGI "CONTENT_LENGTH" meta-variable.
The CGI "CONTENT_TYPE" meta-variable.
The SCGI "DOCUMENT_ROOT" meta-variable.
The SCGI "DOCUMENT_URI" meta-variable.
The CGI "GATEWAY_INTERFACE" meta-variable.
The CGI "PATH_INFO" meta-variable.
The CGI "PATH_TRANSLATED" meta-variable.
The CGI "QUERY_STRING" meta-variable.
The CGI "REMOTE_ADDR" meta-variable.
The CGI "REMOTE_HOST" meta-variable.
The CGI "REMOTE_IDENT" meta-variable.
The CGI "REMOTE_USER" meta-variable.
The CGI "REQUEST_METHOD" meta-variable.
The SCGI "REQUEST_URI" meta-variable.
The CGI "SCRIPT_NAME" meta-variable.
The CGI "SERVER_NAME" meta-variable.
The CGI "SERVER_PORT" meta-variable.
The CGI "SERVER_PROTOCOL" meta-variable.
The CGI "SERVER_SOFTWARE" meta-variable.
Holds parsed CGI meta-variables.