[SOLVED] random array

[zipp]

Hello, Im trying to make a script that randomly generates 4 numbers from an array, without duplicates.  I have the random generation done, but i cant figure out how to get rid of duplicates.

 

Here is what I have so far:

 

<?php
$quote = array(
1  => "abc",
2  => "def",
3  => "hij",
4  => "klm",
5  => "nop",
6  => "qrs",
7  => "tuv",
8  => "wxyz",
);

$i = 1;
while ($i <= 4) {
$randnum = rand(1,7); 
echo"$quote[$randnum] <br />";
$i++;
}


?>

[Barand]

shuffle ($quote);                                  // shake them up

$rand_array = array_slice ($quote, 0, 4);  // take the top 4

[zipp]

Thank you I love this place, i can always get the help I need.