wp_reset_postdata killing variable data - php

Question

I've created an archive page for a custom post type in Wordpress. I want to output data if certain fields match.
Within the first if statement, I want to check what product the user has signed up to (held within $product and match it against the current items custom field (held within $title).
All it's doing is seeing what the user signed up to then outputting the content (which is all the data below <?php if($match == "yes"){ ?>.
The problem I have is wp_reset_postdata() is killing the data held within $match. Is there a way around this? If I don't include the setting up of post data and don't include the reset then the rest of the page doesn't show the correct info.
I'm using Advanced Custom Fields relationship field (http://www.advancedcustomfields.com/resources/field-types/relationship/).
Any help would be much appreciated.
User signed up as: <?php $current_user = wp_get_current_user();
$board = $current_user->work;
$product = $current_user->product;
echo $product; ?>
<br />
<?php while (have_posts()) : the_post(); ?>
<?php $products = get_field('product');
if( $products ):
foreach( $products as $post): // variable must be called $post (IMPORTANT)
setup_postdata($post);
$title = $post->post_title;
echo $title;
if($product == $title) {
$match = "yes";
}
endforeach;
wp_reset_postdata(); // IMPORTANT - reset the $post object so the rest of the page works correctly
endif; ?>
<?php if($match == "yes"){ ?>
<div id="module-area" style="margin-top:0px!IMPORTANT;">
<div id="modules-top"></div>
<div id="modules-repeat" style="position:relative;padding-left:10px;padding-right:10px;width:625px!IMPORTANT;">
<div class="topic">
<p><?php the_title(); ?></p>
</div>
<div class="description">
<p><?php the_field('description') ?></p>
</div>
<div class="date">
<p style="text-align:center!IMPORTANT;"><?php the_modified_time('d.m.y'); ?></p>
</div>
<div class="action">
<a class="train-button" href="<?php echo the_permalink(); ?>"></a>
</div>
<div class="clear"></div>
</div>
<div style="margin-bottom:5px;" id="modules-bottom"></div>
</div>
<?php } ?>
<?php endwhile; ?>

Answer 1

User signed up as: <?php $current_user = wp_get_current_user();
$board = $current_user->work;
$product = $current_user->product;
?>
<?php $products = get_field('product');
if( $products ):
foreach( $products as $post): // variable must be called $post (IMPORTANT)
setup_postdata($post);
$title = $post->post_title;
if($product == $title) {
wp_reset_postdata(); ?>
<div id="module-area" style="margin-top:0px!IMPORTANT;">
<div id="modules-top"></div>
<div id="modules-repeat" style="position:relative;padding-left:10px;padding-right:10px;width:625px!IMPORTANT;">
<div class="topic">
<p><?php the_title(); ?></p>
</div>
<div class="description">
<p><?php the_field('description') ?></p>
</div>
<div class="date">
<p style="text-align:center!IMPORTANT;"><?php the_modified_time('d.m.y'); ?></p>
</div>
<div class="action">
<a class="train-button" href="<?php echo the_permalink(); ?>"></a>
</div>
<div class="clear"></div>
</div>
<div style="margin-bottom:5px;" id="modules-bottom"></div>
</div>
<?php
}
endforeach;
endif; ?>
wp_reset_postdata();