php - 如何在php中将foreach用于3d数组

Question

我有一个 3d 数组，需要用它做点什么，能够使用简单的 for each 来解决问题，如下所示：

for($n=0;$n<count($d["T"]);$n++)
{
 $d["T"][$n]["Pay"]=number_format($d["T"][$n]["Pay"], 2, '.', '');
}

Answer 1

最简单的技术是嵌套 Foreach 外观 ... 喜欢

foreach($arrD as $key => $arrInternal){

    foreach($arrInternal as $keyIn => $Data){

          //Perform your operation here
    }

}

Answer 2

foreach ($d["T"] as &$var) {
  $var['Pay'] = number_format($var['Pay'], 2, '.', '');
}