ACF if / else checkbox [closed]

Small fix for you 🙂

<?php
  if( in_array( "Yes", get_field( 'news__item--external' ) ) ) {
?>
    <a href="https://wordpress.stackexchange.com/questions/170396/<?php echo the_field("news__item--external-url'); ?>" class="more icon--chev">View full article</a>
<? } else { ?>
    <a href="https://wordpress.stackexchange.com/questions/170396/home.php">Home</a>
<?php } ?>

The code to fix was:

<php } else { <a href="https://wordpress.stackexchange.com/questions/170396/home.php">Home</a>   } ?>

You was missing the end php tag from the { after else then the opening php tag before the a tag. Final bit was open php tag after the a tag.