<?php
exec("ps aux | grep node | awk '{print $2}'", $out);
foreach ($out as $PID) {
    exec("sudo kill ".$PID);
}
exec("ps aux | grep a.out | awk '{print $2}'", $out);
foreach ($out as $PID) {
    exec("sudo kill ".$PID);
}
header('Location: index.php');
exit;
?>