Hide field when is empty

Hello guys,

Can someone help me with a little issue that I have in my code?

I have the following custom fields in my functions.php:

update_post_meta($post->ID, 'mr_month_price', $_POST['mr_month_price']);
update_post_meta($post->ID, 'mr_month_off', $_POST['mr_month_off']);
update_post_meta($post->ID, 'mr_month_lastrice', $_POST['mr_month_lastrice']);

update_post_meta($post->ID, 'mr_sixmonth_price', $_POST['mr_sixmonth_price']);
update_post_meta($post->ID, 'mr_sixmonth_off', $_POST['mr_sixmonth_off']);
update_post_meta($post->ID, 'mr_sixmonth_lastrice', $_POST['mr_sixmonth_lastrice']);

update_post_meta($post->ID, 'mr_threeyear_price', $_POST['mr_threeyear_price']);
update_post_meta($post->ID, 'mr_threeyear_off', $_POST['mr_threeyear_off']);
update_post_meta($post->ID, 'mr_threeyear_lastrice', $_POST['mr_threeyear_lastrice']);

update_post_meta($post->ID, 'mr_fiveyear_price', $_POST['mr_fiveyear_price']);
update_post_meta($post->ID, 'mr_fiveyear_off', $_POST['mr_fiveyear_off']);
update_post_meta($post->ID, 'mr_fiveyear_lastrice', $_POST['mr_fiveyear_lastrice']);

PHP:

Today I added the following new custom fields:

update_post_meta($post->ID, 'mr_trial_price', $_POST['mr_trial_price']);
update_post_meta($post->ID, 'mr_trial_off', $_POST['mr_trial_off']);
update_post_meta($post->ID, 'mr_trial_lastrice', $_POST['mr_trial_lastrice']);

PHP:

This is the code that I have in my single.php file:

<?php } else { if($month_price_1){ ?>

<ul class="wjprice">

<li><a target="_blank" href="<?php echo $post_external_link; ?>" rel="nofollow">
<div class="pnkP" id="p1"><span>$</span>
<h5><?php echo get_post_meta($post->ID,"mr_month_price",true); ?> <small>/month</small></h5>
</div>
<div class="offP" id="p2">
<?php $dollar_price_1= get_post_meta($post->ID,"mr_month_off",true); if($dollar_price_1){ ?>
<i class="prctIcon"></i> <?php echo $dollar_price_1."% OFF"; } ?> </div>
<div class="dscP" id="p3">
<?php $dollar_my= get_post_meta($post->ID,"mr_month_lastrice",true);  if($dollar_my){ ?>
<i class="curP"></i> <strike><?php echo $dollar_my; ?></strike>
<?php } ?>
</div>
</a></li>

<?php  } $mr_sixmonth_price_12=    get_post_meta($post->ID,"mr_sixmonth_price",true); if($mr_sixmonth_price_12){ ?>
<li><a target="_blank" href="<?php echo $post_external_link; ?>" rel="nofollow">
<div class="pnkP" id="p1"><span>$</span>
<h5><?php echo get_post_meta($post->ID,"mr_sixmonth_price",true); ?> <small>/3 month</small></h5>
</div>
<div class="offP" id="p2">
<?php $percentage_price_12= get_post_meta($post->ID,"mr_sixmonth_off",true);   if($percentage_price_12){ ?>
<i class="prctIcon"></i> <?php echo $percentage_price_12."% OFF"; } ?></div>
<div class="dscP" id="p3">
<?php $my_year_123= get_post_meta($post->ID,"mr_sixmonth_lastrice",true); if($my_year_123){ ?>
<i class="curP"></i> <strike><?php echo $my_year_123; ?></strike>
<?php } ?>
</div>
</a></li>

<?php } $mr_threeyear_price_123=get_post_meta($post->ID,"mr_threeyear_price",true); if($mr_threeyear_price_123){ ?>
<li><a target="_blank" href="<?php echo $post_external_link; ?>" rel="nofollow">
<div class="pnkP" id="p1"><span>$</span>
<h5><?php echo get_post_meta($post->ID,"mr_threeyear_price",true); ?> <small>/6 month</small></h5>
</div>
<div class="offP" id="p2">
<?php if(get_post_meta($post->ID,"mr_threeyear_off",true)){ ?>
<i class="prctIcon"></i> <?php echo get_post_meta($post->ID,"mr_threeyear_off",true); ?>% OFF
<?php } ?>
</div>
<div class="dscP" id="p3">
<?php if(get_post_meta($post->ID,"mr_threeyear_lastrice",true)){ ?>
<i class="curP"></i> <strike><?php echo get_post_meta($post->ID,"mr_threeyear_lastrice",true); ?></strike>
<?php } ?>
</div>
</a></li>

<?php } $mr_fiveyear_price_123=get_post_meta($post->ID,"mr_fiveyear_price",true); if($mr_fiveyear_price_123){ ?>
<li><a target="_blank" href="<?php echo $post_external_link; ?>" rel="nofollow">
<div class="pnkP" id="p1"><span>$</span>
<h5><?php echo get_post_meta($post->ID,"mr_fiveyear_price",true); ?> <small>/1 Year</small></h5>
</div>
<div class="offP" id="p2">
<?php if(get_post_meta($post->ID,"mr_fiveyear_off",true)){ ?>
<i class="prctIcon"></i> <?php echo get_post_meta($post->ID,"mr_fiveyear_off",true); ?>% OFF
<?php } ?>
</div>
<div class="dscP" id="p3">
<?php $year_class_5_1= get_post_meta($post->ID,"mr_fiveyear_lastrice",true); if($year_class_5_1){ ?>
<i class="curP"></i> <strike><?php echo $year_class_5_1; ?></strike>
<?php } ?>
</div>
</a></li>

<?php }?>
</ul>
<?php }?>

PHP:

At the moment, everything is working fine. The first one, "mr_month_price" is showing data when I put text inside the field and the other fields too, and if no text is added, they don't display, exactly as I want.

I want to add the new custom fields "mr_trial_price" above "mr_month_price", in first.
But when I do this, for some reason, the field "mr_month_price" disappears too when "mr_trial_price" field is empty...

This is the code that I used after the line: <ul class="wjprice">:

<?php } $mr_trial_price_123=get_post_meta($post->ID,"mr_trial_price",true); if($mr_trial_price_123){ ?>
<li><a target="_blank" href="<?php echo $post_external_link; ?>" rel="nofollow">
<div class="pnkP" id="p1"><span>$</span>
<h5><?php echo get_post_meta($post->ID,"mr_trial_price",true); ?> <small>/trial</small></h5>
</div>
<div class="offP" id="p2">
<?php if(get_post_meta($post->ID,"mr_trial_off",true)){ ?>
<i class="prctIcon"></i> <?php echo get_post_meta($post->ID,"mr_trial_off",true); ?>% OFF
<?php } ?>
</div>
<div class="dscP" id="p3">
<?php if(get_post_meta($post->ID,"mr_trial_lastrice",true)){ ?>
<i class="curP"></i> <strike><?php echo get_post_meta($post->ID,"mr_trial_lastrice",true); ?></strike>
<?php } ?>
</div>
</a></li>

PHP:

Any idea of what could be?
What I'm missing?

Thanks!!