Echo Variable Within While Loop | Except Last - php

Question

I am trying to echo a divider within a while loop after every item except the last item. Currently I have the divider after each item.
I've found a few solutions involving mysql rows and counters but so far nothing that relates to my situation.
I am using the following code (note, this does not include an attempted solution but rather my starting point.):
<?php if( have_rows('testimonials') ): ?>
<div class="testimonials col-md-4">
<h2>What People are Saying</h2>
<?php while( have_rows('testimonials') ): the_row();
// vars
$image = get_sub_field('image');
$quote = get_sub_field('quote');
$name = get_sub_field('name');
$divider = "<div class=\"dots full\"></div>";
?>
<div class="media">
<a class="pull-left" href="#">
<?php echo '<img src="'.$image['url'].'" alt="'.$image['alt'].'" class="img-circle" style="max-width: 70px;">'; ?>
</a>
<div class="media-body">
<div class="quote">
<?php echo $quote; ?>
</div>
<div class="source">
<span><?php echo $name; ?></span>
</div>
</div>
</div>
<?php echo $divider; ?>
<?php endwhile; ?>
</div>
<?php endif; ?>

Answer 1

I followed #Frogs advice and added the divider before each item and then used a counter to rule out the first item.
<?php if( have_rows('testimonials') ): ?>
<?php $test_count = 0; ?>
<div class="testimonials col-md-4">
<h2>What People are Saying</h2>
<?php while( have_rows('testimonials') ): the_row();
// vars
$image = get_sub_field('image');
$quote = get_sub_field('quote');
$name = get_sub_field('name');
$divider = "<div class=\"dots full\"></div>";
if ($test_count !== 0) {
echo $divider;
}
$test_count++;
?>
<div class="media">
<a class="pull-left" href="#">
<?php echo '<img src="'.$image['url'].'" alt="'.$image['alt'].'" class="img-circle" style="max-width: 70px;">'; ?>
</a>
<div class="media-body">
<div class="quote">
<?php echo $quote; ?>
</div>
<div class="source">
<span><?php echo $name; ?></span>
</div>
</div>
</div>
<?php endwhile; ?>
</div>
<?php endif; ?>