SNMP::getnext

(PHP 5 >= 5.4.0)

SNMP::getnext — Fetch an SNMP object which follows the given object id

说明

public mixed SNMP::getnext ( mixed $object_id )

Fetch an SNMP object that follows specified object_id.

参数

If object_id is a string, then SNMP::getnext() will return SNMP object as string. If object_id is a array, all requested SNMP objects will be returned as associative array of the SNMP object ids and their values.

object_id: The SNMP object (OID) or objects

返回值

Returns SNMP objects requested as string or array depending on object_id type or FALSE on error.

错误／异常

本方法默认不抛出任何异常。如果要在某些库出错时抛出 SNMPException 异常，用户需要将 SNMP 类参数 exceptions_enabled 设定为相应的值。更多细节见 SNMP::$exceptions_enabled 的解释。

范例

Example #1 Single SNMP object

Single SNMP object may be requested in two ways: as string resulting string return value or as single-element array with associative array as output.

  <?php
  $session  = new  SNMP ( SNMP :: VERSION_1 ,  "127.0.0.1" ,  "public" );
   $nsysdescr  =  $session -> getnext ( "sysDescr.0" );
  echo  " $nsysdescr \n" ;
   $nsysdescr  =  $session -> getnext (array( "sysDescr.0" ));
   print_r ( $nsysdescr );
 ?>

以上例程的输出类似于：

OID: NET-SNMP-MIB::netSnmpAgentOIDs.8
Array
(
    [SNMPv2-MIB::sysObjectID.0] => OID: NET-SNMP-MIB::netSnmpAgentOIDs.8
)

Example #2 Miltiple SNMP objects

  <?php
  $session  = new  SNMP ( SNMP :: VERSION_1 ,  "127.0.0.1" ,  "public" );
   $results  =  $session -> getnext (array( "sysDescr.0" ,  "sysName.0" ));
   print_r ( $results );
   $session -> close ();
 ?>

以上例程的输出类似于：

Array
(
    [SNMPv2-MIB::sysObjectID.0] => OID: NET-SNMP-MIB::netSnmpAgentOIDs.8
    [SNMPv2-MIB::sysLocation.0] => STRING: Nowhere
)

参见

SNMP::getErrno() - Get last error code
SNMP::getError() - Get last error message