Sorty by array field PHP

Question

my array looks like this:

array(3) { 
[1]=> array(2) { 
    ["username"]=> string(8) "bob123" 
    ["percent"]=> int(100) 
} 
[2]=> array(2) { 
    ["username"]=> string(13) "bryan123" 
    ["percent"]=> int(0) 
} 
[3]=> array(2) { 
    ["username"]=> string(8) "jim123" 
    ["percent"]=> int(0) 
} 
}

I would like to sort by the percent field inside of my array titled $friends, how would I do this?

So what code have you created to attempt to solve this issue? — Giacomo1968, Jan 05 '14 at 08:48
possible duplicate of [Reference: all basic ways to sort arrays and data in PHP](http://stackoverflow.com/questions/17364127/reference-all-basic-ways-to-sort-arrays-and-data-in-php) — deceze, Jan 05 '14 at 08:48

score 3 · Answer 1 · answered Jan 05 '14 at 08:52

3

Write a comparison function that comapares two elements according to your preferred order and pass that function along with the array to usort.

answered Jan 05 '14 at 08:52

Oswald

31,254
3
43
68

Sibiraj PR · Accepted Answer · 2014-01-05T09:36:13.763

0

Array

$array = array(
  array("username"=> "bob123", "percent"=> 10),
  array("username"=> "bob123", "percent"=> 9),
  array("username"=> "bob123", "percent"=> 9)
  );

Function callback for usort

function callb($a, $b){
  if($a['percent'] == $b['percent']){
    return 0;
  }
  return ($a['percent'] > $b['percent'])? +1:-1;  
}

Usage

usort($array,"callb");
 print_r($array);

https://eval.in/85986

edited Jan 05 '14 at 09:36

answered Jan 05 '14 at 08:58

Sibiraj PR

1,481
1
10
25

This is pretty dang close! However if there are two entries with the same percent one is deleted! Any ideas on that? – user3162154 Jan 05 '14 at 09:09
Ya that's a problem there. I will check it now – Sibiraj PR Jan 05 '14 at 09:16
@user3162154 update the answer with usort. Try now – Sibiraj PR Jan 05 '14 at 09:36

Sorty by array field PHP

2 Answers2