code refactoring

server/data.php

@@ -2,25 +2,16 @@
 $cpu = shell_exec('ps aux | awk \'{s += $3} END {print s }\'');
 $total_mem = shell_exec("cat /proc/meminfo | grep MemTotal | awk '{ print $2 }' ");
 $free_mem = shell_exec("cat /proc/meminfo | grep Cached | awk '{ print $2 }' ");
-
-if(trim(shell_exec("uptime |  awk '{ print $10 }' ")) == 'average:') {
-  $average1 =  shell_exec("uptime |  awk '{ print $11 }' ");
-  $average2 =  shell_exec("uptime |  awk '{ print $12 }' ");
-  $average3 =  shell_exec("uptime | awk '{ print $13 }' ");
-} else {
-  $average1 =  shell_exec("uptime |  awk '{ print $10 }' ");
-  $average2 =  shell_exec("uptime |  awk '{ print $11 }' ");
-  $average3 =  shell_exec("uptime | awk '{ print $12 }' ");
-}
+$averageArray =  shell_exec("uptime");
+$averageArray = array_slice((explode(" ", $averageArray)), count($averageArray) - 4);
 
 header('Access-Control-Allow-Origin: *');
+
 $arr = array('CPU' => ((int)trim($cpu) > 100 ? 100 : trim($cpu)),
     'TotalMemory' => trim($total_mem) / 1024,
     'FreeMemory' => trim($free_mem) / 1024,
-    "oneMinute" => substr(trim($average1), 0, -1),
-    "fiveMinutes" => substr(trim($average2), 0, -1),
-    "fifteenMinutes" => trim($average3));
+    "oneMinute" => substr(trim($averageArray[0]), 0, -1),
+    "fiveMinutes" => substr(trim($averageArray[1]), 0, -1),
+    "fifteenMinutes" => trim($averageArray[2]));
 
 exit (json_encode($arr));
-
-?>