php foreach wrap every 2 divs - php

Question

I need to wrap every 2 divs with another div for a project (a row) so it will look like:
<div class="row">
<div> Item </div>
<div> Item </div>
</div>
<div class="row">
<div> Item </div>
<div> Item </div>
</div>
I have tried a few solutions but they dont work since the items coming in are odd (9 items). Here is what I had:
<?php
$count = 0;
foreach ($contents as $content)
{
//var_dump($content);
$books = $content["tags"];
$book_image = $content['content_image'];
$book_desc = $content['content_social_description'];
++$count;
if($count == 1)
{
echo "<div class='et_pb_row'>";
}
foreach ($books as $book)
{
$book_name = $book['tag_name'];
$book_name_trim = str_replace(' ', '-', $book_name);
?>
<!-- Inside the Book Loop -->
<div class='et_pb_column et_pb_column_1_2 books' style="background: url('https://s3-us-west-2.amazonaws.com/crowdhubproverbs31/<?php echo $book_image ;?>');">
<h2><?php echo $book_name; ?></h2>
<p><?php echo $book_desc; ?></p>
<?php echo $count; ?>
</div>
<?php
}
if ($count == 2)
{
echo "</div>";
$count = 0;
}
}
?>
This works except the second to last row has 3 items even though it dispays the "count" as 2 when I echo it out so it should reset but doesnt. So its:
<div class="row">
<div> Item </div> "Count 1"
<div> Item </div> "Count 2"
</div>
<div class="row">
<div> Item </div> "Count 1"
<div> Item </div> "Count 2"
</div>
<div class="row">
<div> Item </div> "Count 1"
<div> Item </div> "Count 2"
<div> Item </div> "Count 2"
</div>
<div class="row">
<div> Item </div> "Count 1"
<div> Item </div> "Count 2"
</div>

Answer 1

You should open and close your <rows/> in the books loop, and add a late check for odd books:
<?php
$count = 0;
foreach ($contents as $content)
{
//var_dump($content);
$books = $content["tags"];
$book_image = $content['content_image'];
$book_desc = $content['content_social_description'];
foreach ($books as $book)
{
++$count;
if($count == 1)
{
echo "<div class='et_pb_row'>";
}
$book_name = $book['tag_name'];
$book_name_trim = str_replace(' ', '-', $book_name);
?>
<!-- Inside the Book Loop -->
<div class='et_pb_column et_pb_column_1_2 books' style="background: url('https://s3-us-west-2.amazonaws.com/crowdhubproverbs31/<?php echo $book_image ;?>');">
<h2><?php echo $book_name; ?></h2>
<p><?php echo $book_desc; ?></p>
<?php echo $count; ?>
</div>
<?php
if ($count == 2)
{
echo "</div>";
$count = 0;
}
}
}
if ($count > 0)
{
echo "</div>";
}
?>
Doing so, your $count variable will be incremented only when foreach($books AS $book) loop is run (thus you have at least one book to print)

Answer 2

You can take advantage of array_chunk :
//First make a generator to get all books
function allBooks($contents) {
foreach($contents as $content) {
foreach($content['tags'] as $book) {
yield $book; //Here you can yield whatever you want !
}
}
}
//Then create rows
$itemPerRow = 2;
$rows = array_chunk(iterator_to_array(allBooks($contents)), $itemPerRow, true);
//Display all
foreach($rows as $row) {
echo '<row>';
foreach($row as $book) {
//Display the book !
}
echo '</row>';
}