来自 .csv 的组数组 | PHP

Question

我有这段代码，我想做的是，将来自 .csv 的数据按 Player 分组，然后按年份和联赛分组，例如，我将有 faker -> 2021 -> lck ->数据； ->2020->lck->数据

有时当一名球员一年打过多个联赛时，faker->2021->lck->data | 2021->kespa->数据

问题是，当我显示击杀数（图片）时，2020 年将添加 2021 年的击杀数和 2020 年的击杀数。 我想要的是 2020 年显示该联盟和那一年的击杀数，与 2021 年相同。

我得到的结果：

Faker => 2021 => 杀死 [1,2,3] ; 2020 => 杀死 [1,2,3,6,9,12];

预期结果是：
Faker => 2021 => 杀死 [1,2,3] ; 2020 => 杀死 [6,9,12]

我怎样才能做到这一点？

这就是 csv

gameid,datacompleteness,url,league,year,split,季后赛,日期,游戏,补丁,playerid,side,position,player,team,champion .....

这是我的代码；

<?php
  
$csvFileData = file('./datalck.csv');
$dataMatch = [];

foreach ($csvFileData as $lines) {
    $data[] = str_getcsv($lines);
}
  

foreach ($dataMatch as $matchs) {
  // So here i'm grouping the array by player
 //[3] is the position for the league
 //[4] is the position for year
 //[13] is the position of player name ,
 //[23] The position of kills
    if ($matchs[13] != NULL and $matchs[13] != "") {

        $group[$matchs[13]][] = [
            'Player' => $matchs[13],
            "kills" => $matchs[23],
            'league' => $matchs[3],
            'year' => $matchs[4],


        ];
    }
}


foreach ($group as $players => $p) {


    $kills = [];       
    foreach ($p as $op) {

        $kills[] = $op['kills'];

        $group2[$op['Player']][$op['year']][$op['league']] = [
            "Player" => $op['Player'],
            "kills" => $kills,
            "league" => $op['league'],
            "year" => $op['year'],
        ];
    }
}

foreach ($group2 as $op2) {

    echo '<pre>';
    var_dump(($group2));
    echo '</pre>';
}

?>

Answer 1

您正在添加到$kills 数组，而不考虑年份。 因此，当您解析年份2021 时，$kills 数组已经包含了2020 数据。

您可以在第一次（每年）创建一个空数组，然后填充它。

foreach ($group as $players => $p)
{
    foreach ($p as $op)
    {
        // variables for readability
        $plyr = $op['Player'];
        $year = $op['year'];
        $leag = $op['league'];
        $kills = $op['kills'];

        // create the initial state
        if (!isset($group2[$plyr][$year][$leag])) 
        {
            $group2[$plyr][$year][$leag] = [
                "Player" => $plyr,
                "league" => $leag,
                "year" => $year,
                "kills" => [], // empty array
            ];
        }

        // add value to array for the player/year/league :
        $group2[$plyr][$year][$leag]['kills'][] = $kills;
    }
}

查看working demo。