Display specific block size with PHP - php

Question

I have a list of blocks to print in my web page. Data of these blocks are stored in a database like this:
Priority column corresponds to the priority id to print blocks order by ascendant priority id. Size column corresponds to the size of the block (0 or 1), 0 for half width of the page and 1 for full width of the page.
The blocks can be added dynamically, currently the first half width block positions on the left (float: left) and the next block on the right, any problem for the full width blocks.
My problem is when I have 4 half width blocks successive, I have this display:
Here my code:
<?php
$i = 1;
foreach (Block::getAll($diagnostic) as $block)
{
if ($block['size'] == 0)
{
$size = 6;
if (Block::get($diagnostic, $block['priority'] + 1, 'size') == 0 && Block::get($diagnostic, $block['priority'] + 1, 'size') != null)
{
?>
<div class="row">
<div class="cols-<?php echo $size; ?> blocks">
<div class="header"><h3>Titre <?php echo Block::get($diagnostic, $block['priority'], 'priority'); ?></h3></div>
<div class="body">
<p>Texte <?php echo Block::get($diagnostic, $block['priority'], 'priority'); ?></p>
</div>
</div>
<div class="cols-<?php echo $size; ?> blocks">
<div class="header"><h3>Titre <?php echo Block::get($diagnostic, $block['priority'] + 1, 'priority'); ?></h3></div>
<div class="body">
<p>Texte <?php echo Block::get($diagnostic, $block['priority'] + 1, 'priority'); ?></p>
</div>
</div>
</div>
<?php
}
else if (Block::get($diagnostic, $block['priority'] + 1, 'size') != 0 && Block::get($diagnostic, $block['priority'] - 1, 'size') != 0)
{
?>
<div class="row">
<div class="cols-<?php echo $size; ?> blocks">
<div class="header"><h3>Titre <?php echo $block['priority']; ?></h3></div>
<div class="body">
<p>Texte <?php echo $block['priority']; ?></p>
</div>
</div>
</div>
<?php
}
}
else
{
$size = 12;
?>
<div class="row">
<div class="cols-<?php echo $size; ?> blocks">
<div class="header"><h3>Titre <?php echo $block['priority']; ?></h3></div>
<div class="body">
<p>Texte <?php echo $block['priority']; ?></p>
</div>
</div>
</div>
<?php
}
++$i;
}
In pleasure to read you.

Answer 1

Problem solved.
I deleted the container and I added display-block attribute to my blocks with 50% width for half blocks and 100% width for full blocks.
PHP side, I get the size value from the database and I push the half class or full class according this data.