acf repeater

<?php if( have_rows('slides') ): ?>
    <ul class="slides">
    <?php while( have_rows('slides') ): the_row(); 
        $image = get_sub_field('image');
        ?>
        <li>
            <?php echo wp_get_attachment_image( $image, 'full' ); ?>
            <p><?php the_sub_field('caption'); ?></p>
        </li>
    <?php endwhile; ?>
    </ul>
<?php endif; ?>

<?php 
$rows = get_field('repeater_field_name');
if( $rows ) {
    echo '<ul class="slides">';
    foreach( $rows as $row ) {
        $image = $row['image'];
        echo '<li>';
            echo wp_get_attachment_image( $image, 'full' );
            echo wpautop( $row['caption'] );
        echo '</li>';
    }
    echo '</ul>';
}

<?php 
if( have_rows('repeater_field_name') ) {
    while( have_rows('repeater_field_name') ) {
        the_row();
        $first_row_title = get_sub_field('title');
        // Do something...
        break;
    }
}

<?php
/**
 * Field Structure:
 *
 * - parent_repeater (Repeater)
 *   - parent_title (Text)
 *   - child_repeater (Repeater)
 *     - child_title (Text)
 */
if( have_rows('parent_repeater') ):
    while( have_rows('parent_repeater') ) : the_row();

        // Get parent value.
        $parent_title = get_sub_field('parent_title');

        // Loop over sub repeater rows.
        if( have_rows('child_repeater') ):
            while( have_rows('child_repeater') ) : the_row();

                // Get sub value.
                $child_title = get_sub_field('child_title');

            endwhile;
        endif;
    endwhile;
endif;

<?php
$rows = get_field('repeater_field_name' );
if( $rows ) {
    $first_row = $rows[0];
    $first_row_title = $first_row['title'];
    // Do something...
}