在循环时向php添加z-index

I have a procedural while loop that echos out rows in my DB like:

echo '<tr align="left"> <td>'.$row['address'].','.$row['state'].'</td>'.
        '<td><a href="'.$row['shopurl'].'">'.$row['datedesc'].'</td>'.
    '</tr>';

And works great! The problem now is that I need to add a "SOLD OUT" png across the address & state, of only one (currently) of the rows. I have CSS:

#sold-out{
    background-image: url("/graphics/png/soldout.png");
}

With the image as the back-ground.

How can I add a Z-Index to php inside a While loop?

Thanks in advance!

You do not add z-index to PHP, you add it to CSS. However, in this case, you can simply print out an absolutely positioned div with the image in the td that you want.

PHP

foreach ($rows as $row) {
    echo '<tr align="left">
            <td>';

            //conditional to determine if row is sold out
            if ($row['soldOut'] === 'yes') {
                echo '<div class="sold-out">&nbsp;</div>';
            }

    echo $row['address'].','.$row['state'].'</td>'.
           '<td><a href="'.$row['shopurl'].'">'.$row['datedesc'].'</td>'.
         '</tr>';
}

CSS

.sold-out {
    position:absolute;
    background-image: url("/graphics/png/soldout.png");
    opacity: 0.8;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;