get_temp1.php

 function get_temp() {  
     exec("/usr/local/bin/mbmon -c1 -T1", $dfout);  
     return trim($dfout[0]);  
 } 

get_temp2.php

 function get_temp() {  
     exec("/usr/local/bin/mbmon -r -c1 | /usr/bin/grep TEMP | /usr/bin/awk '{ print $3 }'", $temps);  
     return $temps;  
 }  

pfsense_has_temp.php

function has_temp() {  
     return true;  
 } 

widget_after.php

 <?php  
         if(has_temp()):  
             $temps = get_temp();  
             foreach ($temps as &$temp) {  
 ?>  
         <tr>  
             <td width='25%' class='vncellt'>Temperature</td>  
             <td width='75%' class='listr'>  
                 <img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_left.gif" height="15" width="4" border="0" align="middle" alt="left bar" /><img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_blue.gif" height="15" name="tempwidtha" id="tempwidtha" width="<?= $temp; ?>" border="0" align="middle" alt="red bar" /><img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_gray.gif" height="15" name="tempwidthb" id="tempwidthb" width="<?= (100 - $temp); ?>" border="0" align="middle" alt="gray bar" /><img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_right.gif" height="15" width="5" border="0" align="middle" alt="right bar" />  
                 &nbsp;  
                 <input style="border: 0px solid white;" size="30" name="tempmeter" id="tempmeter" value="<?= $temp."C"; ?>" />  
             </td>  
         </tr>  
 <?php  
             }  
         endif;  
 ?>  

widget_before.php

 <?php  
         if(has_temp()):  
 ?>  
         <tr>  
             <td width='25%' class='vncellt'>Temperature</td>  
             <td width='75%' class='listr'>  
                 <?php $temp = get_temp(); ?>  
                 <img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_left.gif" height="15" width="4" border="0" align="middle" alt="left bar" /><img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_blue.gif" height="15" name="tempwidtha" id="tempwidtha" width="<?= $temp; ?>" border="0" align="middle" alt="red bar" /><img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_gray.gif" height="15" name="tempwidthb" id="tempwidthb" width="<?= (100 - $temp); ?>" border="0" align="middle" alt="gray bar" /><img src="./themes/<?= $g["theme"]; ?>/images/misc/bar_right.gif" height="15" width="5" border="0" align="middle" alt="right bar" />  
                 &nbsp;  
                 <input style="border: 0px solid white;" size="30" name="tempmeter" id="tempmeter" value="<?= $temp."C"; ?>" />  
             </td>  
         </tr>  
         <?php endif; ?>