Afficher le résultat d'un ping

<?php
$ping = shell_exec('ping -c 4 127.0.0.1');
echo $ping;
?>

<?php
$ping = exec('ping -c 4 127.0.0.1');
echo $ping;
?>

<?php
require_once('header.php'); 
$db = (file_exists(PATH_BDD)?Functions::unstore():array());
asort($db['engines']);
$tpl->assign('engines',$db['engines']);
$places = (isset($db['places'])?$db['places']:array());
asort($places);
$tpl->assign('places',$places);
$view = 'index';
require_once('footer.php'); 
?>

{include="header"}

{if="isset($myUser)"}
 
<ul class="nav nav-tabs" id="myTab">
{$first=0}
{loop="places"}
<li class="{if="$first==0"}{$first=1}active{/if}"><a href="#{$key}">{$value['name']}</a></li>
{/loop}




</ul>

<div class="tab-content">
{$first=0}
{loop="places"}
{$currentPlace=$key}
<div class="tab-pane {if="$first==0"}{$first=1}active{/if}" id="{$key}">

      <div class="row">


{loop="engines"}

 {if="$value2['place']==$currentPlace"}
 
<div class="span3">
          <h5>{$value2['name']}</h5>
    <a class="thumbnail" href="#"><img src="../../{$value['picture']}"></a>
     <br/>
    <p>{$value2['description']}
     <ul>
      <li>Code radio : <code>{$value2['code']}</ code></li>
      <li>Id : <code>{$key2}</ code></li>
      <li>Emplacement : <code>{$places[$value2['place']]['name']}</ code></li>
     </ul>
    </p>
      <div class="btn-toolbar">
    <div class="btn-group">
    <a class="btn {if="$value2['state']=='on'"}btn-success{/if}" href="action.php?engine={$key}&action=CHANGE_STATE&code={$value2['code']}&state=on"><i class="icon-thumbs-up {if="$value2['state']=='on'"}icon-white{/if}"></i></a>
    <a class="btn {if="$value2['state']=='off'"}btn-danger{/if}" href="action.php?engine={$key}&action=CHANGE_STATE&code={$value2['code']}&state=off"><i class="icon-thumbs-down {if="$value2['state']=='off'"}icon-white{/if}"></i></a>
    </div>
   </div>
        </div>
        {/if}
{/loop}

      </div>

</div>

{/loop}

</div>

<div>
 <ul>
  <li>Adresse du ping : {$IP = "192.168.1.1"}</li>
 </ul>
 <a class="btn" href="action.php?action=ping&IP={$IP}"><i class="icon-hdd"></i></a>
</div>

   {else}
  Vous devez vous connecter pour controler cet espace !
   {/if}
{include="footer"}

<?php
require_once('header.php');


switch($_['action']){

case 'ping':
 $IP = $_GET['IP'];
 exec("ping -c 1 $IP", $output, $status);
 header('location: index.php');
break;
  
default:
 echo 'Aucune action correcte n\'est spécifiée';
break;

}
?>