­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ connect_error) { die(json_encode([ "success" => false, "message" => "Database connection failed", "error" => $conn->connect_error ])); } $conn->set_charset("utf8mb4");