Question

wonder if anyone can help;

I have an a two dimensional array which I need to group by any common “job number” element;
Here’s an example – I’m just playing with the idea at the moment, The $i is just a counter that iterates through the array results;

$galleryItems[$i][0] = 'example title';//the title
 $galleryItems[$i][1] = 'example description';//description
 $galleryItems[$i][2] = 'the client';//client
 $galleryItems[$i][3] = '00000';//job number

Any ideas on how to group these toegther, eg so if had a number of 00000 job items it would stick all these toegther, and any 00001 would be group together etc.

Thanks

Answer 1

$galleryItemsGrouped = array();
foreach($galleryItems as $k => $v) {
  $galleryItemsGrouped[$v[3]][] = $v;
}
var_dump($galleryItemsGrouped);

or maybe that’s what you mean

usort($galleryItems, function($a,$b) {
  if($a[3] == $b[3]) return 0;
  return $a[3]<$b[3] ? -1 : 1;
});
var_dump($galleryItems);