SNMP
PHP Manual

Predefined Constants

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.

For the snmp_set_oid_output_format()
SNMP_OID_OUTPUT_FULL (integer)
As of 5.2.0
SNMP_OID_OUTPUT_NUMERIC (integer)
As of 5.2.0
For the snmp_set_valueretrieval()
SNMP_VALUE_LIBRARY (integer)
SNMP_VALUE_PLAIN (integer)
SNMP_VALUE_OBJECT (integer)
SNMP types as returned if SNMP_VALUE_OBJECT was used with snmp_set_valueretrieval()
SNMP_BIT_STR (integer)
SNMP_OCTET_STR (integer)
SNMP_OPAQUE (integer)
SNMP_NULL (integer)
SNMP_OBJECT_ID (integer)
SNMP_IPADDRESS (integer)
SNMP_COUNTER (integer)
SNMP_UNSIGNED (integer)
SNMP_TIMETICKS (integer)
SNMP_UINTEGER (integer)
SNMP_INTEGER (integer)
SNMP_COUNTER64 (integer)

SNMP
PHP Manual