PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, PDO::ATTR_EMULATE_PREPARES => false ] ); return $pdo; } catch (PDOException $e) { error_log("Client DB Connection Error: " . $e->getMessage()); die("Database connection failed"); } } // Send email function function sendClientEmail($to, $subject, $message) { $headers = [ 'From: Relevant Reflex ', 'Reply-To: support@relevantreflex.com', 'MIME-Version: 1.0', 'Content-Type: text/html; charset=UTF-8' ]; return mail($to, $subject, $message, implode("\r\n", $headers)); } // Log activity function logClientActivity($message, $data = []) { error_log("CLIENT ACTIVITY: " . $message . " | " . json_encode($data)); } ?>