Comments on the page wont show up - php

Question

Hello i have a problem i cant see the comments on the page.
I dont get any error on the page so i am stuck on this moment
can somebody help me??
This is the php code:
<div id="container">
<?php include('includes/menu.php');?>
<div id="post">
<?php
$row = $query->fetch_object();
echo "<h2>".$row->title."</h1>";
echo "<p>".$row->body."</p>";
?>
</div>
<hr />
<div id="add-comments">
<form action="<?php echo $_SERVER['PHP_SELF']."?id=$id"?>" method="post">
<div>
<label>Email Adres</label><input type="text" name="email" />
</div>
<div>
<label>Naam</label><input type="text" name="name" />
</div>
<div>
<label>Commentaar</label><textarea name="comment"></textarea>
</div>
<input type="hidden" name="post_id" value="<?php echo $id?>" />
<input type="submit" name="submit" value="Toevoegen"/>
</form>
</div>
<hr />
<div id="comments">
<?php
$query = $db->query("SELECT * FROM comments WHERE post_id='$id' ORDER BY comment_id DESC");
while($row = $query->fetch_object()):
?>
<div>
<h5><?php echo $row->name?></h5>
<blockquote><?php echo $row->comment?></blockquote>
<?php endwhile;?>
</div>
</div>
</div>
and the rest of the page is:
<div id="container">
<?php include('includes/menu.php');?>
<div id="post">
<?php
$row = $query->fetch_object();
echo "<h2>".$row->title."</h1>";
echo "<p>".$row->body."</p>";
?>
</div>
<hr />
<div id="add-comments">
<form action="<?php echo $_SERVER['PHP_SELF']."?id=$id"?>" method="post">
<div>
<label>Email Adres</label><input type="text" name="email" />
</div>
<div>
<label>Naam</label><input type="text" name="name" />
</div>
<div>
<label>Commentaar</label><textarea name="comment"></textarea>
</div>
<input type="hidden" name="post_id" value="<?php echo $id?>" />
<input type="submit" name="submit" value="Toevoegen"/>
</form>
</div>
<hr />
<div id="comments">
<?php
$query = $db->query("SELECT * FROM comments WHERE post_id='$id' ORDER BY comment_id DESC");
while($row = $query->fetch_object()):
?>
<div>
<h5><?php echo $row->name?></h5>
<blockquote><?php echo $row->comment?></blockquote>
<?php endwhile;?>
</div>
</div>
</div>
Hope somebody see the problem.

Answer 1

try like this for printing comments..
<div id="comments">
<?php
$query = $db->query("SELECT * FROM comments WHERE post_id='$id' ORDER BY comment_id DESC");
while($row = $query->fetch_object()){ //opening while block
?>
<div>
<h5><?php echo $row->name;?></h5>
<blockquote><?php echo $row->comment;?></blockquote>
<?php }// ending while block ?>
</div>
</div>

Answer 2

<div id="comments">
<?PHP
$query = $db->query("SELECT name, comment FROM comments WHERE post_id='$id' ORDER BY comment_id DESC");
while($row = $query->fetch_object()) {
?>
<div>
<h5><?= $row->name ?></h5>
<blockquote><?= $row->comment ?></blockquote>
</div>
<?PHP } ?>
</div>
If that does not work, i would suggest dumping out the SQL query and making sure it is working.