ops-Gazelle/sections/random/index.php

<?php

enforce_login();

switch ($_REQUEST['action']) {
	case 'collage':
		$DB->query("
SELECT r1.ID
FROM collages AS r1 JOIN
   (SELECT (RAND() *
                 (SELECT MAX(ID)
                    FROM collages)) AS ID)
    AS r2
WHERE r1.ID >= r2.ID
ORDER BY r1.ID ASC
LIMIT 1");
		$collage = $DB->next_record();
		header("Location: collages.php?id={$collage['ID']}");
		break;
	case 'artist':
		$DB->query("
SELECT r1.ArtistID
FROM artists_group AS r1 JOIN
   (SELECT (RAND() *
                 (SELECT MAX(ArtistID)
                    FROM artists_group)) AS ArtistID)
    AS r2
WHERE r1.ArtistID >= r2.ArtistID
ORDER BY r1.ArtistID ASC
LIMIT 1");
		$artist = $DB->next_record();
		header("Location: artist.php?id={$artist['ArtistID']}");
		break;
	case 'torrent':
	default:
	$DB->query("
SELECT r1.ID
FROM torrents_group AS r1 JOIN
   (SELECT (RAND() *
                 (SELECT MAX(ID)
                    FROM torrents_group)) AS ID)
    AS r2
WHERE r1.ID >= r2.ID
ORDER BY r1.ID ASC
LIMIT 1");
	$torrent = $DB->next_record();
	header("Location: torrents.php?id={$torrent['ID']}");
		break;
}