Resolved: displaying ACF repeater fields as shordcode in functions.php

Question:

I have a wordpress and ACF related question. I need to display repeater field as a shortcode that will be created inside functions.php file. Then I will use shortcode inside post page with Gutenberg. Is this possible?
I struggle with this today and I can`t find a solution 🙁

<?php if ( have_rows( 'car_parts' ) ) : ?>  /* this is repeater field */
    <?php while ( have_rows( 'car_parts' ) ) : the_row(); ?>
        <?php the_sub_field( 'car_engine' ); ?>  /* this is repeater subfield */
    <?php endwhile; ?>
<?php else : ?>
    <?php // No rows found ?>
<?php endif; ?>

I prepared a function called

function get_car_parts() {
    echo 'display ACF repeater fields here';
}
    
add_shortcode( 'show-car-parts', 'get_car_parts' );

Any help greatly appreciated 🙂

Answer:

The callback in add_shortcode function should not return an output of any kind, just return the text that is to be used to replace the shortcode, like this:

If you have better answer, please add a comment about this, thank you!

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