如何在php數組中的特定鍵的相同值中添加唯一標識符

Question

我有一個數組

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
        )
    )

現在我需要的是，如果有多個相同值的$ array ['proomtype']，我想在我的foreach循環的末尾附加一個數字..因此，當我循環通過它時，我想要這樣的結果

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

我如何在單個循環中嘗試使用此功能

<?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++;
}

問題是我對每個房間類型的每n個重復一次..這不是我想要的。

Answer 1

它的工作方式是首先使用array_count_values()來計算每種類型的房間的數量，這有助於知道何時需要添加后綴。
然后，它使用array_fill_keys()從1開始為每種房間類型創建一個具有當前計數器的數組副本。

然后，該代碼循環遍歷查找房間類型的所有條目，如果房間類型具有多個條目，它將添加計數器數組的后綴並遞增該計數器。

$duplicates = array_count_values(array_column($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);

帶有示例數據的輸出為...

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
        )

)