Random element from associative array

Juhas

Hi. I've got an associative array named $pictures.
I've got there filenames for example: "picabc.jpg"

I want to randomize this array. Hmmm...
Maybe you will see, what I mean on example:

I wanna do something like:

drawOneOfElementsIntoVariable($picture);
echo("<img src=\"$picture\" />");

mrhappiness

[man]array_rand[/man]

Why is it an associative array?

Juhas

Originally posted by mrhappiness
[man]array_rand[/man]

Why is it an associative array?

Hmmm... Have I done a language mistake?
Maybe.
I mean array, for example:

$myArray["name"] = "Johnny Walker";

laserlight

I think mrhappiness meant to ask: "why does it have to be an associative array?"

You might be able to use [man]array_values/man to turn it into a numerically indexed array.

Juhas

Originally posted by laserlight
I think mrhappiness meant to ask: "why does it have to be an associative array?"

You might be able to use [man]array_values/man to turn it into a numerically indexed array.

But there is a little problem, because I get this array from a database(using PEAR), llike this:

$query="SELECT picture_new FROM tblRealisations WHERE new=1";

$myArray = $dataBase->getAll($query, array(), DB_FETCHMODE_ASSOC);

And I don't have an idea how to change an associative array into indexed array nor how to get indexed array from this query.

mrhappiness

Either you use the function laserlight posted or you use array_rand which can handle associative arrays as well

laserlight

And I don't have an idea how to change an associative array into indexed array nor how to get indexed array from this query.

I gave the answer in the previous post - use array_values().
THough the only reason why I would use array_values() rather than array_rand() would be if I wanted to explicitly use the Mersenne Twister PRNG, [man]mt_rand/man.