balance the arrays for each index - php

Question

<?php
$teams = [0 => ['players' => ['marie'=>2342,
'paul'=>3632,
'vincent'=>2362,
'pierre'=>7823,
'jean'=>9203]
],
1 => ['players' => []
],
2 => ['players' => []
],
3 => ['players' => []
]
];
$all_teams = array_merge($teams[0]['players'],
$teams[1]['players'],
$teams[2]['players'],
$teams[3]['players']);
$result = array_chunk($all_teams, 1, true);
for ($i = 0; $i <= 3; $i++) {
if (isset($result[$i]) && isset($teams[$i])) {
$teams[$i]['players'] = $result[$i];
}
}
//I want a input of array like
$teams = [0 => ['players' => ['marie'=>2342, 'jean'=>9203]
],
1 => ['players' => ['paul'=>3632]
],
2 => ['players' => ['vincent'=>2362]
],
3 => ['players' => ['pierre'=>7823]
]
];
Hello, I want to add each player on each team to balance the arrays;
the problem with my code, it puts it in the mess and 'jean' does not count in the array and i want the last element to be added too. and find a better way to balance the tables for each incoming element.

Answer 1

You can do something like:
$teams = [0 => ['players' => ['marie'=>2342,'paul'=>3632,'vincent'=>2362,'pierre'=>7823,'jean'=>9203]],
1 => ['players' => []],
2 => ['players' => []],
3 => ['players' => []]
];
//Get all players and put them into a single array
$players = array_reduce(array_column( $teams, 'players' ),'array_merge',array());
$teamCount = count($teams);
//Clear all Teams
foreach($teams as $key => $team) {
$teams[$key]['players'] = array();
}
//Assign the playes to the team using mod
foreach(array_keys($players) as $key => $player ) {
$teams[ $key % $teamCount ]['players'][$player] = $players[$player];
}
This will result to:
Array
(
[0] => Array
(
[players] => Array
(
[marie] => 2342
[jean] => 9203
)
)
[1] => Array
(
[players] => Array
(
[paul] => 3632
)
)
[2] => Array
(
[players] => Array
(
[vincent] => 2362
)
)
[3] => Array
(
[players] => Array
(
[pierre] => 7823
)
)
)

Answer 2

Here is a solution. It counts total players and then redistributes according to how many players you want on a team.
function balanceTeams($teams, $playersPerTeam, $shuffle = NULL){
//Get total players in array
$playerCount = 0;
foreach($teams as $team){
foreach($team['players'] as $player=>$id){
$players[] = array('name' => $player, 'id'=>$id);
}
}
$playerCount = count($players);
if($shuffle){
shuffle($players);
}
//Make your new array
$count = 0;
$team = 0;
for($i = 0; $i < $playerCount; $i += $playersPerTeam){
for($j = 0; $j < $playersPerTeam; $j++){
if($players[$count]['id']){
$results[$team]['players'][$players[$count]['name']] = $players[$count]['id'];
}else {
break;
}
$count++;
}
$team++;
}
return $results;
}
How to use:
$teams = [0 => ['players' => ['marie'=>2342,
'paul'=>3632,
'vincent'=>2362,
'pierre'=>7823,
'jean'=>9203]
],
1 => ['players' => []
],
2 => ['players' => []
],
3 => ['players' => []
]
];
$playersPerTeam = 2;
$shuffle = NULL; //Set to 1 to shuffle.
$results = balanceTeams($teams, $playersPerTeam, $shuffle);
print_r($results);
Outputs:
Array
(
[0] => Array
(
[players] => Array
(
[marie] => 2342
[paul] => 3632
)
)
[1] => Array
(
[players] => Array
(
[vincent] => 2362
[pierre] => 7823
)
)
[2] => Array
(
[players] => Array
(
[jean] => 9203
)
)
)

Answer 3

function:
function mixPlayers($teams)
{
$r = [];
array_walk_recursive($teams, function ($v, $k) use (&$r) {
if (!is_array($v)) {
$r[] = [$k => $v];
}
});
return $r;
}
function assign($players, $need)
{
$res = [];
for ($i = 0; $i < count($players); $i++) {
$index = $i % $need;
$res[$index]['players'] = array_merge(
isset($res[$index]['players']) ? $res[$index]['players'] : [],
$players[$i]
);
}
return $res;
}
usage:
$res = assign( mixPlayers($teams) , 4);
var_export($res);