====== cpuLoad ======
~~NOTOC~~
<WRAP right box>
== Syntax ==
  mixed cpuLoad ()
</WRAP>
===== Description =====
The function ''cpuLoad()'' returns an array of CPU loads under windows, a single integer value under unix, or false if the information is not available.
===== Windows =====
After PHP version 5.4, the Windows PHP extension for COM objects is not enabled by default. To enable it, add 

  extension=php_com_dotnet.dll

to php.ini. If not available, the error ''class COM not installed'' will be issued. The function returns a 4 element array, the first element represents total CPU usage.
==== Usage ====
<code php>
$perf = newPerfMonitor($db);
$c =  $perf->cpuLoad();

print_r($c);
/*
 * Returns 
Array (
  [0] => 30
  [1] => 0
  [2] => 0
  [3] => 0
)
*/
</code>

===== Unix=====
The function returns a single value, that represent total CPU usage.
==== Usage ====
<code php>
$perf = newPerfMonitor($db);
$c =  $perf->cpuLoad();

print $c;
/*
 * Returns  30
 */ 
</code>