randomize array

[sde]

how can i randomize an array?

shuffle() is the only function i can find, however that doesn't work.

[sde]

i figured out my mistake, .. i was using it wrong:

this is wrong.

PHP Code:

<?
$array=shuffle($array);
?>

This is right.

PHP Code:

<?
shuffle($array);
?>

[Ilya020]

What arr you trying to do?

Ilya.

[sde]

i was working on an online learning system .. for testing.

i needed to take a specific number of random questions from each cateogory of questions. within each category i needed to take 2 questions from each difficulty level.

then at the end i had a big array of question id's .. well even though i chose random questions from the database, they were still in order by category and difficulty level.

i needed an array function that would just mix up the array so the test could be given in random order.

shuffle() is a beatuiful thing. may levels of randomness in my program so chances are very very slim that a user retaking the test will get the same questions .. not to mention even slimmer that they get the same questions in the same order.

fun stuff =)