Sorting function calls only return true [duplicate]

Question

I can't seem to sort my array using the standard PHP functions and I don't understand why. Here is;

array (size=5)
  0 => string 'Favourite Band' (length=14)
  1 => string 'Favourite Pizza' (length=15)
  2 => string 'Favourite Side' (length=14)
  3 => string 'Favourite Country' (length=17)
  4 => string 'Favourite Band' (length=14)

Do I have to use some complex callback on this array or am I overthinking it and missing something obvious?

sort($array), rsort($array), arsort($array) just return a boolean for some reason.

My code;

protected function getUndefinedFields($contacts)
{
    $array = [];

    foreach ($contacts as $contact) {
        foreach ($contact['sub']['customFields'] as $key => $sub_array) {
            $array[] = $sub_array['type'];
        }
    }

}

Edit - Thanks to your comments the penny has dropped. I was doing;

$array = asort($array)

Thinking that would set $array to the sorted array. Not the case. It makes sense to me now that it would return bool but didn't at the time.

sort($array);var_dump($array); should print the sorted array. Sort() - Returns TRUE on success or FALSE on failure. — Sougata Bose
– Sougata Bose, Commented May 13, 2016 at 9:35

Jakub Matczak · Accepted Answer · 2016-05-13 09:41:57Z

2

Sorting functions like these you enumerated as examples, work on references to array and modify your source array.

The return bolean value only says is sorting ended with success.

edited May 13, 2016 at 9:41

answered May 13, 2016 at 9:34

Jakub Matczak

15.7k5 gold badges52 silver badges68 bronze badges

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

Comments

Dhara Parmar · Accepted Answer · 2016-05-13 09:35:44Z

0

asort() succesfully sorting this array.

$arr = array('Favourite Band','Favourite Pizza','Favourite Side','Favourite Country','Favourite Band');
asort($arr);

answered May 13, 2016 at 9:35

Dhara Parmar

8,1231 gold badge19 silver badges27 bronze badges

Collectives™ on Stack Overflow

Sorting function calls only return true [duplicate]

2 Answers 2

Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Linked

Related