api/data.php

   1 <?php
   2
   3 session_start();
   4 if (!isset($_SESSION['id']))
   5     die("Access denied");
   6
   7 $cpuUsage = sys_getloadavg();
   8
   9 function convert($size)
  10  {
  11     $unit=array('b','kb','mb','gb','tb','pb');
  12     return @round($size/pow(1024,($i=floor(log($size,1024)))),2).$unit[$i];
  13  }
  14
  15 $memUsage = memory_get_usage(true);
  16 $data = array(
  17     "cpu" => $cpuUsage[0],
  18     "memory" => convert($memUsage),
  19 );
  20
  21 header('Content-Type: application/json');
  22 echo json_encode($data);
  23 ?>