Sort a multi-dimensional array by a column [duplicate]

Question

I am trying to order arrays inside a quite nested array according to a property inside the arrays that need sorting.

$unOrderedArray = array(
    'fields' => array(
      array(
        'key' => 'field_60f6e595c18cc',
         'name' => 'Should be last',
      ),
      array(
        'key' => 'field_60f6bcf3e0b87',
        'name' => 'Should be second',
      ),
      array(
        'key' => 'field_60f6adb77c6f3',
        'name' => 'Should be first',
      )
    )
  );

So the key property has a value that could be ordered alphabetically.

Does this answer your question? How to sort an array of associative arrays by value of a given key in PHP? — ADyson
– ADyson, Commented Jul 30, 2021 at 10:25
Does this answer your question? How to Sort a Multi-dimensional Array by Value — aaandri98
– aaandri98, Commented Jul 30, 2021 at 10:25
It does not print the results I am trying to do var_dump(usort($unOrderedArray, 'sortByOrder')); but I just get bool(true) — Álvaro
– Álvaro, Commented Jul 30, 2021 at 10:33
The link I provided shows a different solution. Please take a look. — ADyson
– ADyson, Commented Jul 30, 2021 at 10:35

diegopso · Accepted Answer · 2021-07-30 10:40:27Z

1

I believe you need to use usort, where you can specify a custom sorting function. The solution would be:

  usort($unOrderedArray['fields'], function($a, $b) {
     return  $a['key'] > $b['key'] ? 1 : -1;
  });

Obs.: I return integers in the function to avoid warnings.

The usort function only returns a bool informing whether succeded or not. The array is passed via reference and its value is changed while sorting. Thus, to observe the results one has to print the original array.

  print_r($unOrderedArray);

edited Jul 30, 2021 at 10:40

answered Jul 30, 2021 at 10:33

diegopso

4573 silver badges11 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Álvaro Over a year ago

Thanks, but how can I see the ordered array, I am trying to print this but just get 1

diegopso Over a year ago

You have to print the array, it is passed via reference: print_r($unOrderedArray);. The function only returns whether succeded or not.

Álvaro Over a year ago

Thanks I did var_dump($unOrderedArray['fields']); and it worked.

Collectives™ on Stack Overflow

Sort a multi-dimensional array by a column [duplicate]

1 Answer 1

3 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Linked

Related