You've gotten a few responses already... but since you didn't describe the
application, here is an alternative if you are using the random numbers to
retrieve random records from a database (postgreqsl in this example);
$query = SELECT * FROM table ORDER BY random() LIMIT 5;
am usre the MySQL
OK I want to pick 5 random numbers from 1 to 200. Easy.
They must all be different. Not so easy.
?
srand ((double) microtime() * 100);
while (count($selectednumbers) 5)
{
$randomnumber = rand(1, 200);
if (!in_array($randomnumber, $selectednumbers))
{
Jason gave you a better way to do so, but if you want a readable one, then
this code might work for you:
?
function get_rand_array($from=0, $to=0, $keys=0) {
$rand = Array();
if(!$keys) Return $rand;
if($keys=($to-$from)) {
Return $rand;
// Doesn't make much sense, does
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