Chunking images?

[Mackski]

I tend to chunk images quite often for <table> elements in emails, pdfs and other layouts.

array_chunk($page->images) does not work, it would be great if there was a method to chunk your images.

eg:

foreach($images->chunk(4) as $chunk) {
 foreach($chunk as $img) {
  echo $img->url;
 }
}

I might be over thinking it, but I currently have to manually chunk like:

        $x = 0; $c = 0;
        foreach($stage->images as $i) {
            $chunks[$c][] = $i;
            if($x > 2) { 
                $c++; 
                $x = 0;
            } else {
                $x++;
            }
        }

[Soma]

$arr = $page->images->getArray();

$arr2 = array_chunk($arr,2);

foreach($arr2 as $key => $chunk){
    $content .= "chunk$key<br>";
    foreach($chunk as $c){
        $content .= "$c->url<br>";
    }
}

Though not sure if getArray() really is optimal, but I guess so. But like the idea of chunk() for WireArrays maybe.

[Mackski]

Thanks Soma, I guess adding a chunk() would save a few keystrokes.

[Soma]

The only drawback I see is that WireArray is always single level and not nested, so chunk() would have to change that concept. I think if you post this in Wishlist forum, Ryan will have to tell.

[ryan]

How about this: 

for($size = 4, $n = 0; $n < count($images); $n += $size) {
  foreach($images->slice($n, $size) as $img) {
    echo $img->url;
  }
} 

[Mackski]

Slice would work. I take it that is not part of the core. I had a quick look through the source.

[kongondo]

Slice is right here: http://processwire.com/api/arrays/ and here http://cheatsheet.processwire.com/

[interrobang]

slice is a method of WireArray and multifile fields are WireArrays too.

see here for available methods: http://processwire.com/api/arrays/

or http://cheatsheet.processwire.com/