Gazelle/sections/ajax/similar_artists.php

<?php

$artist_id = $_GET["id"];

$DB->query("
                        SELECT
                        s2.ArtistID,
                        ag.Name,
                        ass.Score
                        FROM artists_similar AS s1
                        JOIN artists_similar AS s2 ON s1.SimilarID=s2.SimilarID AND s1.ArtistID!=s2.ArtistID
                        JOIN artists_similar_scores AS ass ON ass.SimilarID=s1.SimilarID
                        JOIN artists_group AS ag ON ag.ArtistID=s2.ArtistID
                        WHERE s1.ArtistID=".$artist_id."
                        ORDER BY ass.Score DESC
                        LIMIT 14");

		
		while(list($ArtistID, $Name, $Score) = $DB->next_record(MYSQLI_NUM, false)){
                       	if($Score<0){
                                continue;
                        }
			$results[] = array('id' => (int) $ArtistID, 'name' => $Name, 'score' => (int) $Score);
                }

print json_encode($results);
exit();
?>