[RESOLVED] PHP Random Number, No Repeat - not in a list.

filmchick

Hi everyone. I've been searching everywhere for a solution, and although I've found some, they all output the numbers into a sequence instead of a single number.

I'm trying to use this code snippet:

<img src="http://www.yoursite.com/folder/random/image-<?php echo rand(1,n); ?>.png" />

I need to display 13 images in a random order on a page, but I can't have any of them repeat.

Can any of you please help me out?

Many thanks in advance!
-Amy (PHP Noob)

paulnaj

Look at the example for shuffle()

filmchick

Thanks for your response, paulnaj. I still couldn't figure it out, however, I did stumble upon this helpful snippet which does EXACTLY what I was looking for:

<?php
  // display a series of random images - PHP form solution
  // (c) 2004 David Pankhurst - use freely, but please leave in my credit
  $images=array( "img1.gif","img2.gif","img3.gif","img4.gif","img5.gif" );
  srand(time());
  shuffle($images);
  for ($i=0;$i<5;++$i) // display my five images
    echo "<a href='$images[$i]'>image $i</a><br>";
  ?>

Hope that helps other non-coders out!

bradgrafelman

Note that the call to [man]srand/man is superfluous and can simply be omitted.

EDIT: Also, don't forget to mark this thread resolved (if it is) using the link on the Thread Tools menu above.

filmchick

Thanks Brad!