Passing Variables from PHP to JavaScript

If you need to pass some variables off from your PHP code into your JavaScript or jQuery code you can use something like this…

var javascript_variable = <?php echo json_encode($php_variable); ?>;

ACF Hide Field if Empty

How to ignore or hide a field if it has no value?

This comes in handy with fields that are not required by the CMS user to fill out and will sometimes remain blank.

<?php if (get_field('email')): ?> 
   <?php the_field('email'); ?> 
<?php endif; ?>

Or if it is a sub field inside of the repeater loop.

<?php if (get_sub_field('email')): ?> 
   <?php the_sub_field('email'); ?> 
<?php endif; ?>

ACF Repeater Loop Ready for HTML

Why is this needed?

I use this loop all the time and I always have to close out each line of PHP in order to pepper it with my markup. So this is just a way to save a little time.

<?php if( have_rows('repeater_field_name') ): ?>
   <?php while ( have_rows('repeater_field_name') ) : the_row(); ?>
      <?php the_sub_field('sub_field_name'); ?>
   <?php endwhile; ?>
<?php else: ?>
   <!-- there are no rows -->
<?php endif; ?>