ACF image grid

gistfile1.txt

<?php 
if ( get_field('portfolio_images' ) ) :
    while ( the_repeater_field( 'portfolio_images' ) ) :

        $image = wp_get_attachment_image_src(get_sub_field('portfolio_image'), 'portfolio');
        // url = $image[0];
        // width = $image[1];
        // height = $image[2]; ?>

        <div class="grid">
        <img src="<?php echo $image[0]; ?>" width="<?php echo $image[1]; ?>" height="<?php echo $image[2]; ?>" alt="<?php the_sub_field( 'title' ); ?>" class="gallery-item" /><br>
        <a href="<?php the_sub_field( 'image_link' ); ?>"><?php the_sub_field( 'title' ); ?></a>
</div>
      

<?php endwhile;
endif; ?>