The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
VARNISH_STATUS_SYNTAX
     (integer)
    VARNISH_STATUS_UNKNOWN
     (integer)
    VARNISH_STATUS_UNIMPL
     (integer)
    VARNISH_STATUS_TOOFEW
     (integer)
    VARNISH_STATUS_TOOMANY
     (integer)
    VARNISH_STATUS_PARAM
     (integer)
    VARNISH_STATUS_AUTH
     (integer)
    VARNISH_STATUS_OK
     (integer)
    VARNISH_STATUS_CANT
     (integer)
    VARNISH_STATUS_COMMS
     (integer)
    VARNISH_STATUS_CLOSE
     (integer)
    VARNISH_CONFIG_IDENT
     (string)
    VARNISH_CONFIG_HOST
     (string)
    VARNISH_CONFIG_PORT
     (string)
    VARNISH_CONFIG_TIMEOUT
     (string)
    VARNISH_CONFIG_SECRET
     (string)
    VARNISH_CONFIG_COMPAT
     (string)
    VARNISH_COMPAT_2
     (integer)
    VARNISH_COMPAT_3
     (integer)