Question

Ok so my SQL query is:

$image_results = $wpdb->get_results('SELECT * FROM uploaded_images GROUP BY album_title') ;

What I now want to do is have a different set of results for each different *album_title* that outputs the album title in a tag and then show a list of items that have that album title.

Here is what i have so far:

<?php foreach ($image_results as $result => $coll):?>
    <h4><?php echo $coll->album_title;?></h4>
    <?php foreach ( $coll->file_name as $i => $row ) : ?>
         <p><img src="http://example.com/<?php echo  $row->file_name; ?>"/></p>
    <?php endforeach; ?>
<?php endforeach; ?>

Answer 1

After your question update, I think this is what you are looking for. Note that I have used ORDER BY instead of GROUP BY. Grouping is used when things like SUM, AVG, or other aggregate functions are used. This can be handled all in one loop:

$image_results = $wpdb->get_results('SELECT * FROM uploaded_images ORDER BY album_title');
$curTitle = '';
foreach($image_results as $result => $col) {
    if($curTitle !== $col['album_title']) {
        $curTitle = $col['album_title'];
        echo "<h4>$curTitle</h4>";
    }
    echo '<p><img src="' . $col['file_name'] . '" /></p>';
}