<?php session_start(); include('database.php'); DB_connexion(); echo '<pre>' . print_r($_SESSION, TRUE) . '</pre>'; $sql = "SELECT * FROM " .$_SESSION['parties']; $results = mysql_query($sql); while($row = mysql_fetch_assoc($results)) { $list_timestamp[] = intval($row["date"]); } // retourne le dernier timestamp $last_timestamp = end($list_timestamp); echo $last_timestamp; ?>