Question

I have this array, which is already sorted by ‘name’ ASC.

array 
  0 => 
    array
      'id' => '4'
      'name' => 'iPad'
      'games' => 5
  1 => 
    array
      'id' => '5'
      'name' => 'iPhone'
      'games' => 5
  2 => 
    array
      'id' => '6'
      'name' => 'Nintendo DS'
      'games' => 5
  3 => 
    array
      'id' => '1'
      'name' => 'Playstation 2'
      'games' => 2
  4 => 
    array
      'id' => '7'
      'name' => 'Playstation 3'
      'games' => 2
  5 => 
    array
      'id' => '7'
      'name' => 'Xbox 360'
      'games' => 1

I wanted to be sorted by the value of ‘games’ while respecting the order of sorted ‘name’ if the value of ‘games’ are the same.

The result should look like this:

array
  0 => 
    array
      'id' => '7'
      'name' => 'Xbox 360'
      'games' => 1
  1 => 
    array
      'id' => '1'
      'name' => 'Playstation 2'
      'games' => 2
  2 => 
    array
      'id' => '7'
      'name' => 'Playstation 3'
      'games' => 2
  3 => 
    array
      'id' => '4'
      'name' => 'iPad'
      'games' => 5
  4 => 
    array
      'id' => '5'
      'name' => 'iPhone'
      'games' => 5
  5 => 
    array
      'id' => '6'
      'name' => 'iPod Touch'
      'games' => 5

I’ve tried practically all sort functions and user-defined comparison function, but couldn’t find the right one.

If it is possible, how can I approach it if I want ‘games’ DESC while maintaining the sorted ‘name’ ASC if the value of games are the same? Example:

array
  0 => 
    array
      'id' => '6'
      'name' => 'Nintendo DS'
      'games' => 5
  1 => 
    array
      'id' => '5'
      'name' => 'iPhone'
      'games' => 5
  2 => 
    array
      'id' => '4'
      'name' => 'iPad'
      'games' => 5
  3 => 
    array
      'id' => '1'
      'name' => 'Playstation 2'
      'games' => 2
  4 => 
    array
      'id' => '7'
      'name' => 'Playstation 3'
      'games' => 2
  5 => 
    array
      'id' => '7'
      'name' => 'Xbox 360'
      'games' => 1

Answer 1

usort($array, function ($a, $b) {
    if ($a['games'] == $b['games']) {
        return strcmp($a['name'], $b['name']);
    } else {
        return $a['games'] - $b['games'];
    }
});