[SOLVED] Login error for user

$result_user = ldap_get_entries($ldapCnx, $result);
			if ($result_user['count'] == 0) {
			  traceLog("authenticate - Filter error : ldap_search returned no result for filter $filter_r)" );
			  $this->unsuccessfullLogin();
				return "login";
			}
		  if ($result_user['count'] > 1) {
		    traceLog("authenticate - Filter error : ldap_search returned more than one result for filter $filter_r)" );
		    $this->unsuccessfullLogin();
        return "login";
      }
			$first_user = $result_user[0];
			$ldap_user_dn = $first_user['dn'];
      if (strtolower($ldap_user_dn)==strtolower($paramLdap_search_user)) {
      	traceLog("authenticate - Filter error : filter retrieved admin user (LDAP user in global parameters)" );
      	$this->unsuccessfullLogin();
      	return "login";
      }