test.php

<?php
  ini_set('memory_limit', '256M');

  require('snmp.php');

  $oid = '.1.3.6.1.2.1.69.1.1.3';
  $oid = '.1.3.6.1.6.3.15.1.1.4.0';

  // test the oid_format function
  $z = oid_format($oid, OID_TEXT);
  $zz = oid_format($z, OID_NUMERIC);
  echo "$oid => $z => $zz\n";

  $ip = '172.16.0.116'; 		// ip address or hostname
  $ips = array($ip, '172.16.0.64');	// array of ip addresses or hostnames
  $community = 'public';		// community string
  $oid = '.1.3.6.1.2.1.1';		// only numerical oids are supported
  $oids = array('.1.3.6.1.2.1.1.1', '.1.3.6.1.2.1.1.3');

  $snmp = new snmp();

  $snmp->version = SNMP_VERSION_2;

  print_r($snmp->walk($ip, $oid, ['community' => $community]));
  print_r($snmp->multi_walk($ips, $oid, ['community' => $community]));


  $snmp->version = SNMP_VERSION_3;
  print_r($snmp->get('localhost', '.1.3.6.1.2.1.1.3.0', array('v3_flags'=>SNMP_AUTH_PRIV, 'v3_user'=>'v3user',
                                                              'v3_auth'=>'authpassword', 'v3_priv'=>'privpassword')));

  // get system uptime
  print_r($snmp->get($ip, '.1.3.6.1.2.1.1.3.0', ['community' => $community]));
  print_r($snmp->multi_get($ips, '.1.3.6.1.2.1.1.3.0', ['community' => $community]));

  // bulk get
  print_r($snmp->bulk_get($ip, $oids));

  // reset cable modem(s)
  $oid = '.1.3.6.1.3.83.1.1.4.0.1.1.3.0';
  $snmp->set($ip, $oid, 1, 'i', ['community' => 'private']);
  $snmp->multi_set($ips, $oid, 1, 'i', ['community' => 'private']);

  // send a trap
  $ip = '123.45.12.3';
  $community = 'public';
  $varbind = $snmp->build_varbind('.1.3.6.1.3.83.1.1.4.1', 17, 'i');
  $enterprise = '.1.3.6.1.3.83.1.1.4.0.1.1.3.0';
  $agent = '127.0.0.1';
  $trap_type = TRAP_LINKUP;
  $specific_trap_type = 2;
  $uptime = 123;

  $snmp->trap($ip, $community, $varbind, $enterprise, $agent, $trap_type, $specific_trap_type, $uptime);
?>