对多维数组的深层列值求和并将结果映射到同一数组中的另一个元素

Question

我正在试验 PHP 中的数组，并且正在设置一个假环境，其中“团队”记录保存在数组中。

$t1 = array (
    "basicInfo" => array (
        "The Sineps",
        "December 25, 2010",
        "lemonpole"
    ),
    "overallRecord" => array (
        0,
        0,
        0,
        0
    ),
    "overallSeasons" => array (
        "season1.cs" => array (0, 0, 0),
        "season2.cs" => array (0, 0, 0)
    ),
    "matches" => array (
        "season1.cs" => array (
            "week1" => array ("12", "3", "1"),
            "week2" => array ("8", "8" ,"0"),
            "week3" => array ("8", "8" ,"0")
        ),
        "season2.cs" => array (
            "week1" => array ("9", "2", "5"),
            "week2" => array ("12", "2" ,"2")
        )
    )
);

我想要实现的目标是将每个赛季所有周的所有胜利、失败和平局添加到各自的赛季总数中。

例如，$t1["matches"]["season1.cs"] 中所有周的总和将添加到 $t1["overallSeasons"]["season1.cs “]。结果是：

"overallSeasons" => array (
    "season1.cs" => array (28, 19, 1),
    "season2.cs" => array (21, 4, 7)
),

在过去的一个小时里，我试图自己解决这个问题，而我所得到的只是对 for 循环 和 foreach-loops 有了更多的了解。 。所以我想我现在已经掌握了基础知识，例如使用 foreach 循环等。然而，我对此还很陌生，所以请耐心等待！

我可以让循环到达 $t1["matches"] 键并遍历每个赛季，但我似乎不知道如何添加所有胜利每一周的、损失和平局。

目前，我只是寻找有关整个赛季总和的答案，因为一旦我弄清楚如何实现这一目标，我就可以从那里开始工作。

Answer 1

试试这个：

foreach($t1['matches'] as $season => $season_array) {
        foreach($season_array as $week => $week_array) {
                for($i=0;$i<3;$i++) {
                        $t1['overallSeasons'][$season][$i] += $week_array[$i];
                }
        }
}

查看

Answer 2

这应该可以完成您想要完成的任务，但尚未测试过。

foreach ($t1['matches'] as $key=>$value){
   $wins = 0;
   $losses = 0;
   $draws = 0;
   foreach($value as $record){
      $wins   += $record[0];
      $losses += $record[1];
      $draws  += $record[2];
   }

   $t1['overallSeasons'][$key] = array($wins, $losses, $draws);
}

Answer 3

循环匹配子数组以访问季节值。然后对与父循环季节值相关的每列数据进行 array_sum() 的映射调用。这足够灵活，可以处理深行中除 3 列以外的情况。

代码：(演示)

foreach ($t1['matches'] as $season => $weeks) {
    $t1['overallSeasons'][$season] = array_map(
        fn(...$col) => array_sum($col),
        ...array_values($t1['matches'][$season])
    );
}
var_export($t1);

---

如果这种技术太难遵循，那么相当于 2 个经典循环。内部循环可以安全地对周数据使用数组解构，因为只会遇到 3 元素行。

代码：(演示)

foreach ($t1['matches'] as $season => $weeks) {
    foreach ($weeks as [$w, $l, $d]) {
        $t1['overallSeasons'][$season][0] += $w;
        $t1['overallSeasons'][$season][1] += $l;
        $t1['overallSeasons'][$season][2] += $d;
    }
}
var_export($t1);