i am working on php and using mySQL with it. I have a table named "images" which contains 2 columns named "user_id" and "name". 5 rows are filled.Example of table is below:

User_id ---Name
1 waterfall
1 mountain
2 wind
2 sunset
2 snowfall

I am using the script which print all result line by line(i.e 5 results).I want the result which should print 2 results,for example :

1 waterfall
2 wind

it should print unique "user_id" only once with its related "name". and it can increase as the database increase.I am pasting the script which i used, please help :( and correct my script.Thanks in advance.:)

$query = "SELECT * FROM images WHERE user_id>0 ORDER BY user_id DESC LIMIT $offset, $limit";
	$result = mysql_query($query);
    //This is the start of the normal results...
    while ($row = mysql_fetch_array($result))
	echo $img_name."<br>";
	echo $user_id."<br>";
	echo "<br>";