static function sql_fetch_array_assoc($req, $vars = array())
{
$tmp_req = Bdd::sql_fetch($req, $vars);
$contenu[0] = 0;
while ($contenu[] = $tmp_req->fetch(PDO::FETCH_ASSOC)) {
$contenu[0]++;
}
return array_filter($contenu);
//remove empty value
}