Temperature: 
Dynamic Discovery (temperature):  

array (
  'data' => 
  array (
    0 => 
    array (
      'oid' => 'fgHwSensors',
      'num_oid' => '.1.3.6.1.4.1.12356.101.4.3.2.1.{{ $index }}',
      'index' => 'fgHwSensorEntIndex.{{ $index }}',
      'descr' => 'fgHwSensorEntName',
      'value' => 'fgHwSensorEntValue',
      'skip_values' => 
      array (
        0 => 
        array (
          'oid' => 'fgHwSensorEntName',
          'op' => 'regex',
          'value' => '/^((?!Temp).)*$/',
        ),
        1 => 
        array (
          'oid' => 'fgHwSensorEntValue',
          'op' => '=',
          'value' => -1,
        ),
      ),
    ),
  ),
)  

Data fgHwSensors:  

array (
  0 => 
  array (
    'fgHwSensorCount' => '44',
  ),
  1 => 
  array (
    'fgHwSensorEntIndex' => '1',
    'fgHwSensorEntName' => '+VCC3',
    'fgHwSensorEntValue' => '3.311',
    'fgHwSensorEntAlarmStatus' => '0',
  ),
  2 => 
  array (
    'fgHwSensorEntIndex' => '2',
    'fgHwSensorEntName' => '+VCC5',
    'fgHwSensorEntValue' => '5.0172',
    'fgHwSensorEntAlarmStatus' => '0',
  ),
  3 => 
  array (
    'fgHwSensorEntIndex' => '3',
    'fgHwSensorEntName' => '+VCC12',
    'fgHwSensorEntValue' => '11.976',
    'fgHwSensorEntAlarmStatus' => '0',
  ),

 ...

  33 => 
  array (
    'fgHwSensorEntIndex' => '33',
    'fgHwSensorEntName' => 'PS1 Temp 1',
    'fgHwSensorEntValue' => '23',
    'fgHwSensorEntAlarmStatus' => '0',
  ),
  34 => 
  array (
    'fgHwSensorEntIndex' => '34',
    'fgHwSensorEntName' => 'PS1 Temp 2',
    'fgHwSensorEntValue' => '24',
    'fgHwSensorEntAlarmStatus' => '0',
  ),

...

)  

Sensor fetched value: 23  

Cur 23, Low: null, Low Warn: null, Warn: null, High: null

Discover sensor: .1.3.6.1.4.1.12356.101.4.3.2.1.33, fgHwSensorEntIndex.33, fortigate, PS1 Temp 1, snmp, 1, 1, , 23, (limits: LL: , LW: , W: , H: ), rrd_type =  

SQL[SELECT COUNT(sensor_id) FROM `sensors` WHERE `poller_type`= ? AND `sensor_class` = ? AND `device_id` = ? AND sensor_type = ? AND `sensor_index` = ? ["snmp","temperature",5,"fortigate","fgHwSensorEntIndex.33"] 0.46ms] 
  

SQL[SELECT * FROM `sensors` WHERE `sensor_class` = ? AND `device_id` = ? AND `sensor_type` = ? AND `sensor_index` = ? ["temperature",5,"fortigate","fgHwSensorEntIndex.33"] 3.93ms] 
  
.
Sensor fetched value: 24  

Cur 24, Low: null, Low Warn: null, Warn: null, High: null
Discover sensor: .1.3.6.1.4.1.12356.101.4.3.2.1.34, fgHwSensorEntIndex.34, fortigate, PS1 Temp 2, snmp, 1, 1, , 24, (limits: LL: , LW: , W: , H: ), rrd_type =  

SQL[SELECT COUNT(sensor_id) FROM `sensors` WHERE `poller_type`= ? AND `sensor_class` = ? AND `device_id` = ? AND sensor_type = ? AND `sensor_index` = ? ["snmp","temperature",5,"fortigate","fgHwSensorEntIndex.34"] 0.48ms] 
  

SQL[SELECT * FROM `sensors` WHERE `sensor_class` = ? AND `device_id` = ? AND `sensor_type` = ? AND `sensor_index` = ? ["temperature",5,"fortigate","fgHwSensorEntIndex.34"] 0.44ms] 
  

.
array (
  'fortigate' => 
  array (
    'fgHwSensorEntIndex.33' => 1,
    'fgHwSensorEntIndex.34' => 1,
  ),
)  

SQL[SELECT * FROM sensors AS S, devices AS D WHERE S.sensor_class=? AND S.device_id = D.device_id AND D.device_id = ? AND S.poller_type = ? ["temperature",5,"snmp"] 0.64ms] 
  

fgHwSensorEntIndex.33 -> fortigate  

fgHwSensorEntIndex.34 -> fortigate