how to display data from 2 in 2 loop php - php

Question

I have a table in my database with similar data, but others with more data.
What I want is to echo the data through the loop. my problem is that I want to get data from 2 to 2.
My code to display data normally is
<?php $count = $helper->count('testimony');?>
<div class="owl-4">
<?php for ($i=0; $i < $count; $i++) : ?>
<div class="item">
<?php echo '<h3>'.$helper->get('authorname', $i).'</h3>';
echo '<p>'.$helper->get('testimony', $i).'</p>' ;?>
</div>
<?php endfor; ?>
</div>
This returns
<div class="owl-4">
<div class="item">
<h3>Author 1</h3>
<p>Testimony 1</p>
</div>
<div class="item">
<h3>Author 2</h3>
<p>Testimony 2</p>
</div>
................
</div>
How do I turn gives me this
<div class="owl-4">
<div class="item">
<h3>Author 1</h3>
<p>Testimony 1</p>
<h3>Author 2</h3>
<p>Testimony 2</p>
</div>
<div class="item">
<h3>Author 3</h3>
<p>Testimony 3</p>
<h3>Author 4</h3>
<p>Testimony 4</p>
</div>
................
</div>
THANKS

Answer 1

Just increase the counter by 2 instead of 1 each time.
<?php $count = $helper->count('testimony');?>
<div class="owl-4">
<?php for ($i=0; $i < $count; $i += 2) : ?>
<div class="item">
<?php
echo '<h3>'.$helper->get('authorname', $i).'</h3>';
echo '<p>'.$helper->get('testimony', $i).'</p>' ;
echo '<h3>'.$helper->get('authorname', $i + 1).'</h3>';
echo '<p>'.$helper->get('testimony', $i + 1).'</p>' ;
?>
</div>
<?php endfor; ?>
</div>

Answer 2

You can display <div class="item">and </div> each two iterations, for example checking if $i is an even number:
<?php $count = $helper->count('testimony');?>
<div class="owl-4">
<?php for ($i=0; $i < $count; $i++) : ?>
<?php if ($i%2==0): ?>
<div class="item">
<?php endif; ?>
<?php echo '<h3>'.$helper->get('authorname', $i).'</h3>';
echo '<p>'.$helper->get('testimony', $i).'</p>' ;?>
<?php if ($i%2==0): ?>
</div>
<?php endif; ?>
<?php endfor; ?>