(PHP 5)
snmp3_getnext — Fetch the SNMP object which follows the given object id
$host
   , string $sec_name
   , string $sec_level
   , string $auth_protocol
   , string $auth_passphrase
   , string $priv_protocol
   , string $priv_passphrase
   , string $object_id
   [, string $timeout = 1000000
   [, string $retries = 5
  ]] )
   The snmp3_getnext() function is used to read the
   value of the SNMP object that follows the specified
   object_id.
  
host
    The hostname of the SNMP agent (server).
sec_name
    the security name, usually some kind of username
sec_level
    the security level (noAuthNoPriv|authNoPriv|authPriv)
auth_protocol
    the authentication protocol (MD5 or SHA)
auth_passphrase
    the authentication pass phrase
priv_protocol
    the privacy protocol (DES or AES)
priv_passphrase
    the privacy pass phrase
object_id
    The SNMP object id.
timeout
    The number of microseconds until the first timeout.
retries
    The number of times to retry if timeouts occur.
   Returns SNMP object value on success or FALSE on error.
   In case of an error, an E_WARNING message is shown.
  
Example #1 Using snmp3_getnext()
<?php
$nameOfSecondInterface = snmp3_getnext('localhost', 'james', 'authPriv', 'SHA', 'secret007', 'AES', 'secret007', 'IF-MIB::ifName.1');
?>