random user show only avatar on portal

[just77me]

Hello,

can you please help me with that script for the mkportal it shows a random avatar and if a a avatarpicture is there it shows it too, but i want that only those users with a avatar picture are shown up.

here is the code. thank you for helping me.

greetings just77me

*/

global $mklib;

$content = "";

$query = $DB->query( "SELECT userid FROM " . TABLE_PREFIX . "user");

$count = $DB->get_num_rows ($query);
$start = rand(0, ($count -1));
$query = $DB->query("SELECT a.*, m.*, m.userid as id, m.username as name, m.joindate as joined, posts, m.avatarid as maid, a.avatarid as aaid, a.avatarpath as avatarpath
FROM " . TABLE_PREFIX . "user m
LEFT JOIN " . TABLE_PREFIX . "avatar a on (m.userid=a.avatarid)
LIMIT $start, 1");
$row = $DB->fetch_row();
$avatar = "";
$joined = $mklib->create_date($row['joined'], short);
$id = $row['id'];
require_once("$mkportals->forum_url/includes/functions_user.php");
$avatar = fetch_avatar_url($id);
$avatar = $avatar[0];

if ($avatar) {
if (!strpos($avatar, "http://")) {
$avatar = "$mkportals->forum_url/".$avatar;
}
$avatar = "<img src=\"$avatar\" border=\"0\" alt=\"\" />";
} else {
$avatar = "<br />Nessun Avatar selezionato<br /><br />";
}

$content = "
<td>
<tr>
<td width=\"100%\" id=\"tdblock\" align=\"center\">
... there is also <span style='color: red; font-weight: bold;'>{$row['name']}</span>
</td>
<tr>
<td width=\"100%\" id=\"tdglobal\" align=\"center\">
$avatar
</td>
</tr>
<tr>
<td width=\"100%\" id=\"tdglobal\" align=\"center\">
Registered on <br><b>$joined</b><br> Amount Post <b>{$row['posts']}</b> posts.
</td>
</tr>
<tr>
<td width=\"100%\" id=\"tdblock\" align=\"center\">
<a href=\"{$mkportals->forum_url}/member.php?u={$row['id']}\" class='uno'>Member Profile >></a>
</td>
</tr>
</td>
";

?>