[Résolu] ( ! ) Notice: Undefined variable: cle in D:\wamp2\www\project

dite moi pourquoi ce message d'erreur.

$errors = array();
$point = array();
$MSG = '';

foreach($reponses as $cle => $reponse)
{	
if (isset($_POST['correction']))
{	
$clic = $_POST[$cle];
$errorMSG = 0;
if (empty($clic) && empty($clic) !== $reponse['reponse'] && 0 == $errorMSG)
{
$MSG = '<p style="font-size:1.2em;margin:-2em 0 2em 20%;display:block;">vous n\'avez pas rempli tous les champs, veuillez recommençer !</p>';
$errorMSG = 0;
}else
if ($clic === $reponse['reponse'])
{
$point[$cle] = htmlspecialchars($clic);
echo '<p>' . $point[$cle]. '&nbsp&nbsp&nbsp&nbsp<b>' . $reponse['mot'] .'</b></p><br />';
}
else
if ($clic !== $reponse['reponse'])
{
$errors[$cle] = htmlspecialchars($clic);
echo '<p style="color:#red;"><del>' . $errors[$cle] . '&nbsp&nbsp&nbsp&nbsp<b>'.$reponse['mot'].'</del></b></p><p class="red"><b>'.$reponse['reponse'].' ' . $reponse['mot'] . '</b></p><br />';
}
}
}
echo'<div class="clear"></div>';

echo '<br /><br />';

merci d avance