help with the random code

[sabret00the]

PHP Code:

<?php

          echo("[high]REQUESTS: [/high]");

            $rand[0]=" ";
            $rand[1]=" ";
            $rand[2]=" ";
    
            $entry = rand(01,19);
            
            echo("$rand[$entry]");
?>

how would i get this to display 5 of the rands at a time and make sure it doesn't repeat any (display the same one twice.