Having trouble in creating a while loop - php

Question

I have written CSS for two column layout and I have a "users" database with notes of the users.
So when I run a while loop like this: while($row = mysqli_fetch_array($result))
PHP should dynamically create html like this (depending on no. of users):
<div class="row">
<div class="col">
<div class="col-content"><?php echo $row['notes'] ?></div>
<!-- Notes of user 1 -->
</div>
<div class="col">
<div class="col-content"><?php echo $row['notes'] ?></div>
<!-- Notes of user 2 -->
</div>
</div>
<div class="row">
<div class="col">
<div class="col-content"><?php echo $row['notes'] ?></div>
<!-- Notes of user 3 -->
</div>
<div class="col">
<div class="col-content"><?php echo $row['notes'] ?></div>
<!-- Notes of user 4 -->
</div>
</div>
If there's is only one user, html should be like this:
<div class="row">
<div class="col">
<div class="col-content"><?php echo $row['notes'] ?></div>
<!-- Notes of user 1 -->
</div>
</div>
And similarly if there are 3 users, there should one row with two columns and another row with one column.
Is there any way to do that?
Edit: Added my php code here.
<?php
$query = "SELECT * FROM users";
$result = mysqli_query($conn, $query);
while($row = mysqli_fetch_array($result)){
?>
<div class="row">
<div class="col">
<div class="col-content"><?php echo $row['notes'] ?></div>
</div>
</div>
<?php } ?>
Problem with that code is it's creating a new row with "one column" for every user. My goal is to have "two columns" in the row.

Answer 1

you can achieve things like that with the modulo operator (%) within loops.
$i = 0;
$rowCount = mysqli_num_rows($result);
$rowsHTML = '';
while($row = mysqli_fetch_array($result)){
$notesHTML = '<div class="col">
<div class="col-content">'.$row['notes'].'</div>
<!-- Notes of user 1 -->
</div>';
if($i%2 == 0){
$notesHTML = '<div class="row">'.$notesHTML;
// check if its the last item and the row has to be closed after 1 col
if($i+1 == $rowCount){
$notesHTML = $notesHTML.'</div>';
}
} else {
$notesHTML = $notesHTML.'</div>';
}
$rowsHTML .= $notesHTML;
$i++;
}
echo $rowsHTML;

Answer 2

<?php
$query = "SELECT * FROM users";
$result = mysqli_query($conn, $query);
$i = 0;
?>
<div class="row">
<?php
while($row = mysqli_fetch_array($result)){
if($i>1 && $i%2==0) echo '</div><div class="row">';
$i++;
?>
<div class="col">
<div class="col-content"><?php echo $row['notes'] ?></div>
</div>
<?php } ?>
</div>