For loop, runs once? - php

Question

I'm using OpenCart and I'm trying to achieve rendering out the meta_description (used to identify the comic publisher) and use it to make a drop-down list with sub-categories, or to give the illusion of it. Here is my code now, it's an adopted version of the current OpenCart code. ['class'] is how I grab the child categories meta_description.
Basically, the second for statement doesn't work - it only does the first one. I would appreciated any kind of support on this.
<div class="menu">
<div id="top"></div>
<span>
<ul id="nav">
<?php foreach ($categories as $category) { ?>
<li><?php echo $category['name']; ?>
<?php if ($category['children']) { ?>
<div class="subs">
<div>
<?php for ($i = 0; $i < count($category['children']);) { ?>
<ul>
<?php $j = $i + ceil(count($category['children']) / $category['column']); ?>
<h3>DC Comics</h3>
<?php for (; $i < $j; $i++) { ?>
<?php if($category['children'][$i]['class'] == "DC Comics"){ ?>
<li>
<ul>
<?php if (isset($category['children'][$i])) { ?>
<li><?php echo $category['children'][$i]['name']; ?></li>
<?php } ?>
</ul>
</li>
<?php } ?>
<?php } ?>
<h3>Marvel</h3>
<?php for (; $i < $j; $i++) { ?>
<?php if($category['children'][$i]['class'] == "Marvel"){ ?>
<li>
<ul>
<?php if (isset($category['children'][$i])) { ?>
<li><?php echo $category['children'][$i]['name']; ?></li>
<?php } ?>
</ul>
</li>
<?php } ?>
<?php } ?>
</ul>
<?php } ?>
</div>
</div>
<?php } ?>
</li>
<?php } ?>
</ul>
</span>
</div>

Answer 1

Use different variables in loops, in you code $i is used in main loop and incremented in inner loops you can use foreach loop like ,
<?php foreach ($categories as $category) { ?>
<li><?php echo $category['name']; ?>
<?php if (is_array($category['children']) and isset($category['children'])) { ?>
<div class="subs">
<div>
<ul>
<?php
$li1='<li><h3>DC Comics</h3><ul>';
$li2='<li><h3>Marvel</h3><ul>';
foreach($category['children'] as $child)
{
if($child['class'] == "DC Comics")
{
$li1.='<li>'.$child['name'].'</li>';
}
if($child['class'] == "Marvel")
{
$li2.='<li>'.$child['name'].'</li>';
}
}
$li1.='</ul></li>';
$li2.='</ul></li>';
echo $li1;
echo $li2;
?>
</ul>
</div>
</div>
<?php } ?>
</li>
<?php } ?>