PHP Bootstrap row loop every 3 posts - php

Question

Trying to display the custom posts on my archive page within a bootstrap row containing 3 columns then starting a new row, got the code but new to PHP and dont know where to put the content.
<?php
//Columns must be a factor of 12 (1,2,3,4,6,12)
$numOfCols = 3;
$rowCount = 0;
$bootstrapColWidth = 12 / $numOfCols;
?>
<div class="row">
<?php
foreach ($rows as $row){
?>
<div class="col-md-4"<?php echo $bootstrapColWidth; ?>">
<div class="thumbnail">
<img src="user_file/<?php echo $row->foto; ?>">
</div>
</div>
<?php
$rowCount++;
if($rowCount % $numOfCols == 0) echo '</div><div class="row">';
}
?>
</div>
<div class="embed-container">
<?php the_field('podcast_embed_link'); ?>
</div>
<h3><?php the_title(); ?></h3>
<p><b><?php echo $date->format( $format_out );?></b></p>
<p><?php the_field('description'); ?></p>
<?php if( get_field('thumbnail') ): ?>
<img src="<?php the_field('thumbnail'); ?>" />
<?php endif; ?>
<?php endwhile; // end of the loop. ?>
</div>
</div>
</div><!-- #content -->
Here is the code for the page archive.podcasts.php, where would i add the custom fields within the row loop?

Answer 1

First of all, you don't need to close and open row tag each 3 items. If you leave the code like this:
<div class="row">
<?php
foreach ($rows as $row){
?>
<div class="col-md-<?php echo $bootstrapColWidth; ?>">
<div class="thumbnail">
<img src="user_file/<?php echo $row->foto; ?>">
</div>
</div>
<?php
}
?>
</div>
you will get the same effect, but without the separation that a row tag involves. Notice that the line involving "col-md-4" has already changes in order to not create wrong col size usage.

Answer 2

In this part of code:
<div class="col-md-4"<?php echo $bootstrapColWidth; ?>">
You must get wrong bootstrap class like col-md-41, col-md-412.
Correct you code by this way:
<div class="col-md-<?php echo $bootstrapColWidth; ?>">