如何在php数组中的特定键的相同值中添加唯一标识符

Question

我有一个数组

Array
(
    [0] => Array
        (
            [proomsize] => dasfdsfdsf
            [proomtype] => Bedroom
        )

    [1] => Array
        (
            [proomsize] => dasfdsfsd
            [proomtype] => Bedroom
        )

    [2] => Array
        (
            [proomsize] => dfadsf
            [proomtype] => KitchenDinner
        )   


    [4] => Array
        (
            [proomsize] => dafdsads
            [proomtype] => Reception
        )

    [5] => Array
        (
            [proomsize] => fdsafdsfdsf
            [proomtype] => Reception
        )

    [6] => Array
        (
            [proomsize] => adfadfdsf
            [proomtype] => Reception
        )
    )

现在我需要的是，如果有多个相同值的$ array ['proomtype']，我想在我的foreach循环的末尾附加一个数字..因此，当我循环通过它时，我想要这样的结果

Bedroom 1 : dasfdsfdsf
Bedroom 2 : dasfdsfsd
KitchenDinner : dfadsf
Reception 1 : dasfdsfsd
Reception 2 : adfdsf
Reception 3 : dfdfdf

我如何在单个循环中尝试使用此功能

<?php 
$BedroomCounter = 0;
if ($value['proomtype'] == 'Bedroom') {
    if ($BedroomCounter == 0) {
       echo $value['proomtype'] ':' .$value['proomsize'] . '<br>'; 
    }else{
        echo $value['proomtype'] . $BedroomCounter . ':' .$value['proomsize'] . '<br>'; 
    }

    $BedroomCounter++;
}

问题是我对每个房间类型的每n个重复一次..这不是我想要的。

Answer 1

它的工作方式是首先使用array_count_values()来计算每种类型的房间的数量，这有助于知道何时需要添加后缀。
然后，它使用array_fill_keys()从1开始为每种房间类型创建一个具有当前计数器的数组副本。

然后，该代码循环遍历查找房间类型的所有条目，如果房间类型具有多个条目，它将添加计数器数组的后缀并递增该计数器。

$duplicates = array_count_values(array_column($value, "proomtype"));
$currentCount = array_fill_keys(array_keys($duplicates), 1);
foreach ( $value as $key=>$entry ){
    if ( $duplicates[$entry["proomtype"]] > 1 ) {
        $value[$key]["proomtype"] .= " ".$currentCount[$entry["proomtype"]];
        $currentCount[$entry["proomtype"]]++;
    }
}
print_r($value);

带有示例数据的输出为...

Array
(
    [0] => Array
        (
            [proomsize] => dasfdsfdsf
            [proomtype] => Bedroom 1
        )

    [1] => Array
        (
            [proomsize] => dasfdsfsd
            [proomtype] => Bedroom 2
        )

    [2] => Array
        (
            [proomsize] => dfadsf
            [proomtype] => KitchenDinner
        )

    [4] => Array
        (
            [proomsize] => dafdsads
            [proomtype] => Reception 1
        )

    [5] => Array
        (
            [proomsize] => fdsafdsfdsf
            [proomtype] => Reception 2
        )

    [6] => Array
        (
            [proomsize] => adfadfdsf
            [proomtype] => Reception 3
        )

)