modal video conditional

snippet.php

                            <?php if ($landing_block_video_vimeo || $landing_block_video_youtube) : ?>
                                <div class="reveal small" id="videoModal<?php echo $i; ?>" data-reveal>

                                    <?php if ($landing_block_video_vimeo) : ?>

                                        <div class="responsive-embed">

                                            <iframe src="https://player.vimeo.com/video/<?php echo $landing_block_video_vimeo ?>"
                                                    width="640" height="360"
                                                    frameborder="0" allow="autoplay; fullscreen"
                                                    allowfullscreen></iframe>

                                        </div>

                                    <?php elseif ($landing_block_video_youtube) : ?>

                                        <div class="responsive-embed">

                                            <iframe src="https://player.vimeo.com/video/<?php echo $landing_block_video_youtube; ?>"
                                                    width="640" height="360"
                                                    frameborder="0" allow="autoplay; fullscreen"
                                                    allowfullscreen></iframe>

                                        </div>

                                    <?php endif; ?>

                                    <button class="close-button" data-close aria-label="Close reveal" type="button">
                                        <i class="fas fa-times"></i>
                                    </button>
                                </div>
                            <?php endif; ?>