$conn = oci_connect('eminfo','eminfo','localhost/XE');
$query = oci_parse ($conn," SELECT * FROM entreprise WHERE ID_ENTREPRISE='$Id_i'");
$numrows = oci_num_rows($query);
if($numrows==1)
{
$query = oci_parse ($conn ," SELECT * FROM entreprise WHERE ID_ENTREPRISE='$Id_i' AND MOT_DE_PASSE='$password_i' ");
$numrows = oci_num_rows($query);
if ($numrows==1)
{//utilisateur identifié
$_SESSION['ID_ENTREPRISE']='Id_i';
$extract = oci_fetch_assoc($query);
//extraction des information sur lutilisateur identifié
$query = oci_parse($conn,"SELECT * FROM entreprise WHERE ID_ENTREPRISE='$Id_i' ");
$extract = oci_fetch_assoc($query);
$_SESSION['nom_entreprise'] = $extract['nom_entreprise'];