Question

I have an array that represents soccer match “results” (team1 – the name represented by a number and team1_points that represents how many points this team earn from this match (3 for win, 1 for draw and 0 for lost).

Here is the code:

  array (size=9)
  0 => 
    array (size=2)
      'team1' => string '2' (length=1)
      'team1_points' => string '0' (length=1)
  1 => 
    array (size=2)
      'team1' => string '2' (length=1)
      'team1_points' => string '0' (length=1)
  2 => 
    array (size=2)
      'team1' => string '2' (length=1)
      'team1_points' => string '0' (length=1)
  3 => 
    array (size=2)
      'team1' => string '14' (length=2)
      'team1_points' => string '0' (length=1)
  4 => 
    array (size=2)
      'team1' => string '14' (length=2)
      'team1_points' => string '3' (length=1)
  5 => 
    array (size=2)
      'team1' => string '1' (length=1)
      'team1_points' => string '3' (length=1)
  6 => 
    array (size=2)
      'team1' => string '13' (length=2)
      'team1_points' => string '1' (length=1)
  7 => 
    array (size=2)
      'team1' => string '5' (length=1)
      'team1_points' => string '1' (length=1)
  8 => 
    array (size=2)
      'team1' => string '7' (length=1)
      'team1_points' => string '0' (length=1)

As you can see some of the team1 are repeating like ‘team1’ => ‘2’ is there 3 times and team with id=”14″ is there 2 times ‘team1′ => ’14’ etc.

I need to group the same teams based on team1 column (teams with the same id e.g. 2 or 14 etc. and create a new alias column called e.g. team_1_occurrences tht will hold the number of that team in the array and also a column e.g. team1_total_points that will SUM all the team1_points (3,1 or 0).

And then order by team1_total_points column DESC.

So, in the end I need something like this:

team1 | team1_occurrences | team1_total_points
----------------------------------------------
14    | 2                 | 3
----------------------------------------------
2     | 3                 | 0

…

My array created from while loop contains only 2 columns team1 and team1_points (the result is the var_dump in the beginning of my question:

$matches_array[] = array(
     'team1'=> $team_1_id,
     'team1_points'=> $team1_points
);

I guess I need somehow use the php function array_count_values and create a new column but I don’t know how.

Thanks in advance for any advice how to solve this.

Answer 1

You can try

$array = array(
        0 => array('team1' => '2','team1_points' => '1'),
        1 => array('team1' => '2','team1_points' => '1'),
        2 => array('team1' => '2','team1_points' => '0'),
        3 => array('team1' => '14','team1_points' => '0'),
        4 => array('team1' => '14','team1_points' => '3'),
        5 => array('team1' => '1','team1_points' => '3'),
        6 => array('team1' => '13','team1_points' => '1'),
        7 => array('team1' => '5','team1_points' => '1'),
        8 => array('team1' => '7','team1_points' => '1'));



$list = array();

array_map(function($var){}, $array);
foreach ( $array as $value ) {
    $key = $value['team1'];

    if (array_key_exists($key, $list)) {
        $list[$key]['team1_points'] += $value['team1_points'];
        $list[$key]['team_1_occurrences'] ++;
    } else {
        $list[$key] = $value;
        $list[$key]['team_1_occurrences'] = 1;
    }
}

usort($list ,function($a, $b){ $a = $a['team1_points'] ; $b = $b['team1_points'] ; return ($a == $b) ? 0 : (($a < $b) ? 1 : -1 ) ;});
var_dump($list);

Output

array
  0 => 
    array
      'team1' => string '14' (length=2)
      'team1_points' => int 3
      'team_1_occurrences' => int 2
  1 => 
    array
      'team1' => string '1' (length=1)
      'team1_points' => string '3' (length=1)
      'team_1_occurrences' => int 1
  2 => 
    array
      'team1' => string '2' (length=1)
      'team1_points' => int 2
      'team_1_occurrences' => int 3
  3 => 
    array
      'team1' => string '7' (length=1)
      'team1_points' => string '1' (length=1)
      'team_1_occurrences' => int 1
  4 => 
    array
      'team1' => string '13' (length=2)
      'team1_points' => string '1' (length=1)
      'team_1_occurrences' => int 1
  5 => 
    array
      'team1' => string '5' (length=1)
      'team1_points' => string '1' (length=1)
      'team_1_occurrences' => int 1