$v) { if ($v == 3) { $shrapnel = explode('.', $k); $unitID = end($shrapnel); $serial = snmp_get($device, "1.3.6.1.4.1.6527.3.1.2.2.1.8.1.5.1.$unitID", '-OQv', 'TIMETRA-CHASSIS-MIB', 'aos'); unset($shrapnel); } } } unset($props, $p, $k, $v, $unitID);