Stop random images from getting displayed twice

[Presto-X]

Hey guys,

 

I'm stumped, I'm trying to pull in a (as in 1) random image from a dir each time the page loads, I have that part down, but what I am having problems with is, if there are only 5 or so images in the folder, you have a 1 in 5 chance that the same image will get displayed twice.  How can I keep this from happening?

 

header("Content-type: image/jpeg");
$img = glob('images/*.{jpg,jpeg,png,gif}', GLOB_BRACE);
$img = $img[array_rand($img)];
imagejpeg(imagecreatefromjpeg($img));

 

 

[Jessica]

Put the images in an array and shuffle it, then store it in the session.

[TOA]

While I understand the desire for this, just to be a smart ass I feel I have to say: doesn't that defeat the purpose of random?

Edited April 6, 2013 by TOA

[Presto-X]

Thanks guys,

 

I will give that a shot, thanks Jessica.

 

TOA, yes, but it is less annoying to keep seeing the same image back to back