<?php
if(count($_POST) > 0){
  $result=array();
  switch ($_POST['mode']){
   case 'out':
     exec('/usr/local/bin/gpio -g ' . 'mode ' . $_POST['gpio'] . ' out');
     exec('/usr/local/bin/gpio -g ' . 'write ' . $_POST['gpio'] . ' ' . $_POST['value'],$gpioValue);
     //$result ='Success: Pin ' . $_POST['gpio'];
     $result['value'] = ($gpioValue);
   break;
   case 'in':
     exec('/usr/local/bin/gpio -g ' . 'mode ' . $_POST['gpio'] . ' in');
     exec('/usr/local/bin/gpio -g ' . 'read ' . $_POST['gpio'],$gpioValue);
     //$result['value'] = ($gpioValue[0]);
     $result=array(status => $gpioValue[0], gpio=>$_POST['gpio']);
   break;
   default:
     $result='Error:wrong mode';
  }
}
else{
  $result='Error:';
}
echo json_encode($result);
?>