issue when ifisset added to code - php

Question

some explenation
http://koopjesidee.nl/images/6755185029021696.jpg
in my database i have a column named new_label
when its a new product its set as new
when no new product the colums is empty
i want the class="main-label new-label" to be disabled when there nothing in that column
now as you see from the image, there is always a orange cirkel (as set in class main-label) even when column is empty
This is my code
<!-- select products from database -->
<?php
$query = "select * from contentwhere cat = 4 order by rand() LIMIT 18";
$result = $db->query($query);
while($row = $result->fetch_array())
{
$url =detail($row);
<!-- content on main page -->
echo '
<div class="item">
<div class="product-item">
<div class="main-label new-label"><span>'.$row['new_label'].'</span></div>
<div class="product-image"><img src="'.$row['picture_big'].'" alt="'.$row['name'].'"></div>
<div class="product-item-details">
<div class="product-item-name"> '.$row['name'].' </div>
<div class="price-box"> <span class="price">€'.$row['price'].'</span> <del class="price old-price">'.$row['from_price'].'</del> </div>
</div>
</div>
</div>';
}?>
I want add if isset like this so when there is no text in class=new-label class main-label new-label is disabled column in my database is new_label
<div class="item">
<div class="product-item">
<!-- ISSUE -->
if (isset($_row['new_label']!='')) {
<div class="main-label new-label"><span>'.$row['new_label'].'</span></div>;
} else {
<div class="main-label new-label"><span></span></div>;
}
<!-- HTTP ERROR 500 -->
<div class="product-image"><img src="'.$row['picture_big'].'" alt="'.$row['name'].'">

Answer 1

You cannot use isset() on the result of an expression, it can only be a variable. In fact, it will result in a fatal error if you try (which is probably why you received a 500 server error).
So you can probably change this line:
if (isset($_row['new_label']!='')) {
To this:
if (isset($_row['new_label'])) {
isset() returns a boolean anyway, so it doesn't make sense to compare it to a string.
Read more: http://php.net/manual/en/function.isset.php

Answer 2

SOLVED MYSELF GUYS
'.$row['new_label'].'';} ?>
thanks anyway