Optimize too many if else condition

I know many question like this and or can use switch , but my code is different and i am begginer in php.

My if elseif code :

<?php if (get_field('num_field') == '1'): ?>
    <li><a href="<?php the_field('dl_link1'); ?>"><?php the_field('t_dl_link1'); ?></a></li>
<?php elseif (get_field('num_field') == '2'): ?>
    <li><a href="<?php the_field('dl_link1'); ?>"><?php the_field('t_dl_link1'); ?></a></li>
    <li><a href="<?php the_field('dl_link2'); ?>"><?php the_field('t_dl_link2'); ?></a></li>
<?php elseif (get_field('num_field') == '3'): ?>
    <li><a href="<?php the_field('dl_link1'); ?>"><?php the_field('t_dl_link1'); ?></a></li>
    <li><a href="<?php the_field('dl_link2'); ?>"><?php the_field('t_dl_link2'); ?></a></li>
    <li><a href="<?php the_field('dl_link3'); ?>"><?php the_field('t_dl_link3'); ?></a></li>
<?php elseif (get_field('num_field') == '4'): ?>
    <li><a href="<?php the_field('dl_link1'); ?>"><?php the_field('t_dl_link1'); ?></a></li>
    <li><a href="<?php the_field('dl_link2'); ?>"><?php the_field('t_dl_link2'); ?></a></li>
    <li><a href="<?php the_field('dl_link3'); ?>"><?php the_field('t_dl_link3'); ?></a></li>
    <li><a href="<?php the_field('dl_link4'); ?>"><?php the_field('t_dl_link4'); ?></a></li>
<?php elseif (get_field('num_field') == '5'): ?>
    <li><a href="<?php the_field('dl_link1'); ?>"><?php the_field('t_dl_link1'); ?></a></li>
    <li><a href="<?php the_field('dl_link2'); ?>"><?php the_field('t_dl_link2'); ?></a></li>
    <li><a href="<?php the_field('dl_link3'); ?>"><?php the_field('t_dl_link3'); ?></a></li>
    <li><a href="<?php the_field('dl_link4'); ?>"><?php the_field('t_dl_link4'); ?></a></li>
    <li><a href="<?php the_field('dl_link5'); ?>"><?php the_field('t_dl_link5'); ?></a></li>
<?php else: ?>
<?php endif; ?>

How Optimize this code ?

Thanks