3 random, unique images

[Pete]

Hi folks

I'm trying to grab 3 random but unique images from the images field on a website's homepage. Here's my code so far which does a bit of iteration, thumbnailing and cropping:

$homepageimgs = $pages->get("/")->images;
  /*foreach ($homepageimgs as $k => $v) {
  echo $k;
  }*/
  $imgarray = array();
  for ($i = 0; $i < 3; $i++) {
  $imgarray[$i] = $homepageimgs->getRandom();
  $scale = 262/$imgarray[$i]->width();
  $imgarray[$i] = $imgarray[$i]->size(262,round($scale * $imgarray[$i]->height()));
  $imgarray[$i] = $imgarray[$i]->size(262, 149);
  unset($homepageimgs[$imgarray[$i]->name]);
  }

The issue is that I want 3 unique images, so I need to remove whichever random image is selected during each iteration from the $homepageimgs array so it can't be randomly selected again. Sadly that last line of code returns an error.

Any ideas? I was pretty sure the filename is also the key (as evidenced during the 3 lines of commented-out code). I also tried unset($homepageimgs->$imgarray[$i]->name); which is probably ridiculous, however my OO PHP knowledge is severely lacking hence why I tried it anyway

[Pete]

Never mind - I forgot PW allows you to do this instead to get $n random images.

$a->getRandom($n) 

Code is now as follows and works perfectly:

$homepageimgs = $pages->get("/")->images;
  $imgarray = $homepageimgs->getRandom(3);
  $resizedimgarray = array();
  $i = 0;
  foreach ($imgarray as $img) {
  $scale = 262/$img->width();
  $resizedimgarray[$i] = $img->size(262,round($scale * $img->height()));
  $resizedimgarray[$i] = $img->size(262, 149);
  $i++;
  }

[Soma]

I'm asking myself why youre trying to make a loop to get 3 random images. Can't you just use $result = $page->images->getRandom(3) ? Then loop the returned three images?

Haven't you used the Cheatsheet???

[Pete]

Hehe, I was replying as you were replying. The cheatsheet did indeed hold the answer but for some reason I was originally trying to search for "images" on the cheatsheet before I remembered it would be an array anyway (oops).

I blame the horrible cold I've currently got impacting on my brain's ability to think straight