how to display random .swf in php document?

[__greg]

I'm trying to write a script that will alternate displaying a .swf file. kind of like a random web banner script.

like if someone visits the site they will see 'swf1' then if they refresh, thye'll see 'swf2' etc etc.

i basically have two that i want to display on the same page, but they need to alternate

.. does anyone have any idea how i could make this so each file will get the same number of impressions?

[drew010]

if you want to show each one the same amount, you will probably want to use a session or a cookie to track which one you showed to a person last.

//this part before any other data is output
session_start();

//for first page view
if (!isset($_SESSION['last'])) {
    $_SESSION['last'] = 0;
}

//later on in your content
//where you want the banners to appear...

if ($_SESSION['last'] == 0) {
    //echo banner 1
    $_SESSION['last'] = 1;
} else {
    //echo banner 0
    $_SESSION['last'] = 0;
}

[niclarke]

Hi drew010,

I wrote a little function that return a random image BUT from a set array of images.

// Return a random image from a predefined array of images
// NOTE:  The same image could be shown more than once in a row
function get_img ($flag){
   $num = rand(0,11);
   $image_names = array("01.jpg","02.jpg","03.jpg","04.jpg","05.jpg","06.jpg","07.jpg","08.jpg","09.jpg","10.jpg","11.jpg","12.jpg");
   return $image_names[$num];
}

This could of course be played with to just get a random image from a directory.

Nick