(PHP 5 >= 5.4.0, PHP 7)
SNMP::getError — Get last error message
Returns string with error from last SNMP request.
String describing error from last SNMP request.
Example #1 SNMP::getError() example
<?php
$session = new SNMP(SNMP::VERSION_2c, '127.0.0.1', 'boguscommunity');
var_dump(@$session->get('.1.3.6.1.2.1.1.1.0'));
var_dump($session->getError());
?>
以上例程会输出：
bool(false) string(26) "No response from 127.0.0.1"