Show Flash Message On Codeigniter View using sweetalert

sweetalert.php

                    <?php if ($this->session->flashdata('flash_message')): ?>
                            <script>
                                swal({
                                    title: "Done",
                                    text: "<?php echo $this->session->flashdata('flash_message'); ?>",
                                    timer: 1500,
                                    showConfirmButton: false,
                                    type: 'success'
                                });
                            </script>
                    <?php endif; ?>