Php > Miscellaneous sample source codes

Disk Space

Disk Space

<? 
function ListDevices(&$hostname, &$community){ 
echo " 
<html> 
<head> 
  <title>Storage Information</title> 
<head> 
<body> 
<center> 
<table cellpadding=0 cellspacing=0 border=1 width=100%> 
<tr bgcolor=\"#e5e5e5\"> 
  <td width=33% align=center>hrStorageIndex</td> 
  <td width=33% align=center>hrStorageType</td> 
  <td width=33% align=center>hrStorageDescr</td> 
</tr>"; 

$hrStorageIndex = snmpwalk($hostname, $community, ".1.3.6.1.2.1.25.2.3.1.1"); 
$hrStorageType  = snmpwalk($hostname, $community, ".1.3.6.1.2.1.25.2.3.1.2"); 
$hrStorageDescr = snmpwalk($hostname, $community, ".1.3.6.1.2.1.25.2.3.1.3"); 

for($i = 0; $i < sizeof($hrStorageIndex); $i++){ 
  echo " 
        <tr> 
            <td width=33% align=center><a href=\"".$_SERVER["PHP_SELF"]."?action=2&storageindex=".$hrStorageIndex[$i]."\">".$hrStorageIndex[$i]."</a></td> 
          <td width=33% align=center>"; 
   
          $type = substr($hrStorageType[$i], strlen($hrStorageType[$i]) - 1); 
          switch($type){ 
              case 0: 
                echo "Network Disk"; 
                break; 
              case 1: 
                echo "Other"; 
                break; 
              case 2: 
                echo "Ram"; 
                break; 
              case 3: 
                echo "Vrtual Memory"; 
                break; 
              case 4: 
                echo "Fixed Disk"; 
                break; 
              case 5: 
                echo "Removable Disk"; 
                break; 
              case 6: 
                echo "Floppy Disk"; 
                break; 
              case 7: 
                echo "Compact Disk"; 
                break; 
              case 8: 
                echo "Ram Disk"; 
                break; 
              case 9: 
                echo "Flash Memory"; 
                break; 
              default: 
                echo "Unknown"; 
          } 
                     
  echo "  </td> 
          <td width=33% align=center>".$hrStorageDescr[$i]."</td> 
        </tr>"; 
  } 

echo " 
</table> 
</center> 
</body> 
</html>"; 
} 

function DetailedInfo(&$hostname, &$community, $storageIndex){ 
echo " 
<html> 
<head> 
  <title>Disk Usage</title> 
</head> 
<body>"; 

$hrStorageDescr = snmpget($hostname, $community, ".1.3.6.1.2.1.25.2.3.1.3.".$storageIndex); 
$hrStorageSize = snmpget($hostname, $community, ".1.3.6.1.2.1.25.2.3.1.5.".$storageIndex); 
$hrStorageUsed = snmpget($hostname, $community, ".1.3.6.1.2.1.25.2.3.1.6.".$storageIndex); 
$hrStorageAllocationUnits = snmpget($hostname, $community, ".1.3.6.1.2.1.25.2.3.1.4.".$storageIndex); 

$usedBytes = $hrStorageUsed * $hrStorageAllocationUnits; 
$freeBytes = ($hrStorageSize - $hrStorageUsed) * $hrStorageAllocationUnits; 
$capacity = $hrStorageSize * $hrStorageAllocationUnits; 
$usedBytesPer = round(($usedBytes / $capacity) * 100, 2); 
$freeBytesPer = round(($freeBytes / $capacity) * 100, 2); 
$percentToImage = round(($usedBytes / $capacity) * 100); 

echo " 
<font face=\"Courier\" size=4 color=\"#000000\"> 
<center> 
<table cellpadding=0 cellspacing=0 width=75% border=0> 
  <tr><td width=100% align=center colspan=4><b>".$hrStorageDescr."</b><br> </td></tr>"; 

if($capacity < 1073741824){ 
  $usedMBytes = round($usedBytes / pow(2,20), 2); 
  $freeMBytes = round($freeBytes / pow(2,20), 2); 
  $capacityMBytes = round($capacity / pow(2,20), 2); 
  echo " 
  <tr> 
    <td width=20% align=right>Used Space:</td> 
    <td width=50% align=center>".number_format($usedBytes)." Bytes</td> 
    <td width=15% align=center>".$usedMBytes." MB</td> 
    <td width=15% align=center>".$usedBytesPer."%</td> 
  </tr> 
  <tr> 
    <td width=20% align=right>Free Space:</td> 
    <td width=50% align=center>".number_format($freeBytes)." Bytes</td> 
    <td width=15% align=center>".$freeMBytes." MB</td> 
    <td width=15% align=center>".$freeBytesPer."%</td> 
  </tr> 
  <tr> 
    <td width=20% align=right>Capacity:</td> 
    <td width=50% align=center>".number_format($capacity)." Bytes</td> 
    <td width=15% align=center>".$capacityMBytes." MB</td> 
    <td width=15% align=center> </td> 
  </tr>"; 
} else { 
  $usedGBytes = round($usedBytes / pow(2,30), 2); 
  $freeGBytes = round($freeBytes / pow(2,30), 2); 
  $capacityGBytes = round($capacity / pow(2,30), 2); 
  echo " 
  <tr> 
    <td width=20% align=right>Used Space:</td> 
    <td width=50% align=center>".number_format($usedBytes)." Bytes</td> 
    <td width=15% align=center>".$usedGBytes." GB</td> 
    <td width=15% align=center>".$usedBytesPer."%</td> 
  </tr> 
  <tr> 
    <td width=20% align=right>Free Space:</td> 
    <td width=50% align=center>".number_format($freeBytes)." Bytes</td> 
    <td width=15% align=center>".$freeGBytes." GB</td> 
    <td width=15% align=center>".$freeBytesPer."%</td> 
  </tr> 
  <tr> 
    <td width=20% align=right>Capacity:</td> 
    <td width=50% align=center>".number_format($capacity)." Bytes</td> 
    <td width=15% align=center>".$capacityGBytes." GB</td> 
    <td width=15% align=center> </td> 
  </tr>"; 
} 

echo " 
  <tr> 
    <td width=100% align=center colspan=4> <p><img src=\"".$_SERVER["PHP_SELF"]."?action=3&percent=".$percentToImage."\"></td> 
  </tr> 
</table> 
</center> 
</font> 
</body> 
</html>"; 
} 

function GD2DPie($perUsed){ 
$perFree = 100 - $perUsed; 
$endUsed_startFree = ceil((360 / 100) * $perUsed); 
$img = imagecreate(300, 300); 
$bg = imagecolorallocate($img, 255, 255, 255); 
$usedColor = imagecolorallocate($img, 0, 0, 200); 
$freeColor = imagecolorallocate($img, 225, 0, 200); 
imagearc($img, 150, 150, 250, 250, 0, $endUsed_startFree, $usedColor); 
imageline($img, 150, 150, 275, 150, $usedColor); 
imageline($img, 150 + (cos(deg2rad($endUsed_startFree))*(250/2)), 150 + (sin(deg2rad($endUsed_startFree))*(250/2)), 150, 150, $usedColor); 
imagefilltoborder($img, 150 + (cos(deg2rad(($endUsed_startFree)/2))*(250/4)), 150 + (sin(deg2rad(($endUsed_startFree)/2))*(250/4)), $usedColor, $usedColor); 
imagearc($img, 150, 150, 250, 250, $endUsed_startFree, 360, $freeColor); 
imageline($img, 150 + (cos(deg2rad($endUsed_startFree))*(250/2)), 150 + (sin(deg2rad($endUsed_startFree))*(250/2)), 150, 150, $freeColor); 
imageline($img, 150, 150, 275, 150, $freeColor); 
imagefilltoborder($img, 150 + (cos(deg2rad(($endUsed_startFree+360)/2))*(250/4)), 150 + (sin(deg2rad(($endUsed_startFree+360)/2))*(250/4)), $freeColor, $freeColor); 
header("Content-type = image/png"); 
imagepng($img); 
imagedestroy($img); 
} 

$hostname  = "127.0.0.1";  // change this accordingly 
$community = "public";     // public is default but most likely not "public" 

if (empty($_GET["action"])){ 
  $action = 1; 
} else { 
  $action = $_GET["action"]; 
} 

switch($action){ 
  case 1: 
    ListDevices($hostname, $community); 
    break; 
  case 2: 
    DetailedInfo($hostname, $community, $_GET['storageindex']); 
    break; 
  case 3: 
    GD2DPie($_GET['percent']); 
    break; 
  default: 
    die("Unable to process request!"); 
} 

?>