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.
RADIUS_ACCESS_REQUEST 
     ()
    RADIUS_ACCESS_ACCEPT 
     ()
    RADIUS_ACCESS_REJECT 
     ()
    RADIUS_ACCOUNTING_REQUEST 
     ()
    RADIUS_ACCOUNTING_RESPONSE 
     ()
    RADIUS_ACCESS_CHALLENGE 
     ()
    RADIUS_USER_NAME 
     (string)
    RADIUS_USER_PASSWORD 
     (string)
    RADIUS_CHAP_PASSWORD 
     (string)
    RADIUS_NAS_IP_ADDRESS 
     (string)
    RADIUS_NAS_PORT 
     (int)
    RADIUS_SERVICE_TYPE 
     (int)
    Type of Service, one of:
RADIUS_LOGINRADIUS_FRAMEDRADIUS_CALLBACK_LOGINRADIUS_CALLBACK_FRAMEDRADIUS_OUTBOUNDRADIUS_ADMINISTRATIVERADIUS_NAS_PROMPTRADIUS_AUTHENTICATE_ONLYRADIUS_CALLBACK_NAS_PROMPTRADIUS_FRAMED_PROTOCOL 
     (int)
    Framed Protocol, one of:
RADIUS_PPPRADIUS_SLIPRADIUS_ARAPRADIUS_GANDALFRADIUS_XYLOGICSRADIUS_FRAMED_IP_ADDRESS 
     (int)
    RADIUS_FRAMED_IP_NETMASK 
     (string)
    RADIUS_FRAMED_ROUTING 
     (int)
    RADIUS_FILTER_ID 
     (string)
    RADIUS_FRAMED_MTU 
     (int)
    RADIUS_FRAMED_COMPRESSION 
     (int)
    Compression, one of:
RADIUS_COMP_NONERADIUS_COMP_VJRADIUS_COMP_IPXHDRRADIUS_LOGIN_IP_HOST 
     (string)
    RADIUS_LOGIN_SERVICE 
     (int)
    RADIUS_LOGIN_TCP_PORT 
     (int)
    RADIUS_REPLY_MESSAGE 
     (string)
    RADIUS_CALLBACK_NUMBER 
     (string)
    RADIUS_CALLBACK_ID 
     (string)
    RADIUS_FRAMED_ROUTE 
     (string)
    RADIUS_FRAMED_IPX_NETWORK 
     (string)
    RADIUS_STATE 
     (string)
    RADIUS_CLASS 
     (int)
    RADIUS_VENDOR_SPECIFIC 
     (int)
    RADIUS_SESSION_TIMEOUT 
     (int)
    RADIUS_IDLE_TIMEOUT 
     (int)
    RADIUS_TERMINATION_ACTION 
     (int)
    RADIUS_CALLED_STATION_ID 
     (int)
    RADIUS_CALLING_STATION_ID 
     (string)
    RADIUS_NAS_IDENTIFIER 
     (int)
    RADIUS_PROXY_STATE 
     (int)
    RADIUS_LOGIN_LAT_SERVICE 
     (int)
    RADIUS_LOGIN_LAT_NODE 
     (int)
    RADIUS_LOGIN_LAT_GROUP 
     (int)
    RADIUS_FRAMED_APPLETALK_LINK 
     (int)
    RADIUS_FRAMED_APPLETALK_NETWORK 
     (int)
    RADIUS_FRAMED_APPLETALK_ZONE 
     (int)
    RADIUS_CHAP_CHALLENGE 
     (string)
    RADIUS_NAS_PORT_TYPE 
     (int)
    NAS port type, one of:
RADIUS_ASYNCRADIUS_SYNCRADIUS_ISDN_SYNCRADIUS_ISDN_ASYNC_V120RADIUS_ISDN_ASYNC_V110RADIUS_VIRTUALRADIUS_PIAFSRADIUS_HDLC_CLEAR_CHANNELRADIUS_X_25RADIUS_X_75RADIUS_G_3_FAXRADIUS_SDSLRADIUS_ADSL_CAPRADIUS_ADSL_DMTRADIUS_IDSLRADIUS_ETHERNETRADIUS_XDSLRADIUS_CABLERADIUS_WIRELESS_OTHERRADIUS_WIRELESS_IEEE_802_11RADIUS_PORT_LIMIT 
     (int)
    RADIUS_LOGIN_LAT_PORT 
     (int)
    RADIUS_CONNECT_INFO 
     (string)
    RADIUS_ACCT_STATUS_TYPE 
     (int)
    Accounting status type, one of:
RADIUS_STARTRADIUS_STOPRADIUS_ACCOUNTING_ONRADIUS_ACCOUNTING_OFFRADIUS_ACCT_DELAY_TIME 
     (int)
    RADIUS_ACCT_INPUT_OCTETS 
     (int)
    RADIUS_ACCT_OUTPUT_OCTETS 
     (int)
    RADIUS_ACCT_SESSION_ID 
     (int)
    RADIUS_ACCT_AUTHENTIC 
     (int)
    Accounting authentic, one of:
RADIUS_AUTH_RADIUSRADIUS_AUTH_LOCALRADIUS_AUTH_REMOTERADIUS_ACCT_SESSION_TIME 
     (int)
    RADIUS_ACCT_INPUT_PACKETS 
     (int)
    RADIUS_ACCT_OUTPUT_PACKETS 
     (int)
    RADIUS_ACCT_TERMINATE_CAUSE 
     (int)
    Accounting terminate cause, one of:
RADIUS_TERM_USER_REQUESTRADIUS_TERM_LOST_CARRIERRADIUS_TERM_LOST_SERVICERADIUS_TERM_IDLE_TIMEOUTRADIUS_TERM_SESSION_TIMEOUTRADIUS_TERM_ADMIN_RESETRADIUS_TERM_ADMIN_REBOOTRADIUS_TERM_PORT_ERRORRADIUS_TERM_NAS_ERRORRADIUS_TERM_NAS_REQUESTRADIUS_TERM_NAS_REBOOTRADIUS_TERM_PORT_UNNEEDEDRADIUS_TERM_PORT_PREEMPTEDRADIUS_TERM_PORT_SUSPENDEDRADIUS_TERM_SERVICE_UNAVAILABLERADIUS_TERM_CALLBACKRADIUS_TERM_USER_ERRORRADIUS_TERM_HOST_REQUESTRADIUS_ACCT_MULTI_SESSION_ID 
     (string)
    RADIUS_ACCT_LINK_COUNT 
     (int)
    RADIUS_VENDOR_MICROSOFT 
     (int)
    Microsoft specific vendor attributes (» RFC 2548), one of:
RADIUS_MICROSOFT_MS_CHAP_RESPONSERADIUS_MICROSOFT_MS_CHAP_ERRORRADIUS_MICROSOFT_MS_CHAP_PW_1RADIUS_MICROSOFT_MS_CHAP_PW_2RADIUS_MICROSOFT_MS_CHAP_LM_ENC_PWRADIUS_MICROSOFT_MS_CHAP_NT_ENC_PWRADIUS_MICROSOFT_MS_MPPE_ENCRYPTION_POLICYRADIUS_MICROSOFT_MS_MPPE_ENCRYPTION_TYPESRADIUS_MICROSOFT_MS_RAS_VENDORRADIUS_MICROSOFT_MS_CHAP_DOMAINRADIUS_MICROSOFT_MS_CHAP_CHALLENGERADIUS_MICROSOFT_MS_CHAP_MPPE_KEYSRADIUS_MICROSOFT_MS_BAP_USAGERADIUS_MICROSOFT_MS_LINK_UTILIZATION_THRESHOLDRADIUS_MICROSOFT_MS_LINK_DROP_TIME_LIMITRADIUS_MICROSOFT_MS_MPPE_SEND_KEYRADIUS_MICROSOFT_MS_MPPE_RECV_KEYRADIUS_MICROSOFT_MS_RAS_VERSIONRADIUS_MICROSOFT_MS_OLD_ARAP_PASSWORDRADIUS_MICROSOFT_MS_NEW_ARAP_PASSWORDRADIUS_MICROSOFT_MS_ARAP_PASSWORD_CHANGE_REASONRADIUS_MICROSOFT_MS_FILTERRADIUS_MICROSOFT_MS_ACCT_AUTH_TYPERADIUS_MICROSOFT_MS_ACCT_EAP_TYPERADIUS_MICROSOFT_MS_CHAP2_RESPONSERADIUS_MICROSOFT_MS_CHAP2_SUCCESSRADIUS_MICROSOFT_MS_CHAP2_PWRADIUS_MICROSOFT_MS_PRIMARY_DNS_SERVERRADIUS_MICROSOFT_MS_SECONDARY_DNS_SERVERRADIUS_MICROSOFT_MS_PRIMARY_NBNS_SERVERRADIUS_MICROSOFT_MS_SECONDARY_NBNS_SERVERRADIUS_MICROSOFT_MS_ARAP_CHALLENGE