Alternate Merging of Two Page Arrays

Kirby 2 Solved ✅
1

Is there an easy way to merge two Page Arrays the following way:

Array One: X X X X X
Array Two: O O O O O

Mixed: X O X O X O X O X O

So far I’ve tried

 $mixed = new Pages(array($one, $two));

 $mixed = $one->merge($two);

Both of them just append one array after the other.

Mixed: X X X X X O O O O O

Any idea for a simple solution?

2

With a simple for-loop? I don’t know of any other solution…

$merged = [];
for ($i=0; $i < count($one); $i++){ 
    $merged[] = $one[$i];
    $merged[] = $two[$i];
}

You should make sure that $one and two both have the same length.

3

I found this: http://stackoverflow.com/questions/5219138/phphow-merge-2-arrays-when-array-1-values-will-be-in-even-places-and-array-2-w#answer-5219204

4

Thanks.
I get the following error trying that:

Fatal error: Cannot use object of type Children as array
5

Thanks.
I get the following error:

Warning: array_shift() expects parameter 1 to be array, object given
6

Try to convert the page collection to array first:

$one = $page->children()->toArray();
// etc.

Not tested.

8

got that far earlier, but couldn’t figure out how to create pages out of the array again. Any idea?

9

No need to convert to an array, since the class used for page collections already has methods for iterating and getting pages from a collection.
https://getkirby.com/docs/cheatsheet/pages/nth

For instance, as a controller:

<?php

return function($site, $pages, $page) {

   $collection = pages();
   $group1 = $site->find('section1')->children()->limit(10);
   $group2 = $site->find('section2')->children()->limit(10);
   $max    = max($group1->count(), $group2->count());

   for ($i = 0; $i < $max; $i++) {
      if ($p1 = $group1->nth($i)) {
         $collection->add($p1);
      }
      if ($p2 = $group2->nth($i)) {
         $collection->add($p2);
      }
   }

   return ['collection' => $collection];

};
2 Likes
10

Oh yes, of course :slight_smile:

11

Perfect, thanks alot!