在PHP中使用3個暗淡陣列對數組進行排序

Question

好的，即時通訊有一段非常困難的時間，並且嘗試了很多解決方案，但是我無法將其運行。現在放棄了幾個小時，但仍然一無所獲。

我有一個數組，看起來像這樣：$data['dietcontent'][1][1][1]

$data['dietcontent'][1][1][1] 
--------------------^Day^Meal^Line 

這陣，我想理清自己的進餐時間，即在$data['dietcontent'][1][1][1].MealTime

三維陣列是這種格式的存在：

$data['dietcontent'][1][$mealNumber][$mealLine]['MealTime']. 

$ mealNumber可以是從1至7， $ mealLine可以是從1至7

好的，這很難解釋。結構可以做得更好，但由於我只是從中解脫出來，所以我無能爲力。

因此，我想給你一個例子，說明它現在的樣子，以及我希望它看起來如何。

下面是一個例子：

$data['dietcontent'][1][1][1]['MealTime'] // is 07:00 
$data['dietcontent'][1][1][2]['MealTime'] // is 07:00 
$data['dietcontent'][1][1][3]['MealTime'] // is 07:00 
$data['dietcontent'][1][1][4]['MealTime'] // is 07:00 
$data['dietcontent'][1][1][5]['MealTime'] // is 07:00 
$data['dietcontent'][1][1][6]['MealTime'] // is 07:00 
$data['dietcontent'][1][1][7]['MealTime'] // is 07:00 
$data['dietcontent'][1][2][1]['MealTime'] // is 01:30 
$data['dietcontent'][1][2][2]['MealTime'] // is 01:30 
$data['dietcontent'][1][2][3]['MealTime'] // is 01:30 
$data['dietcontent'][1][2][4]['MealTime'] // is 01:30 
$data['dietcontent'][1][2][5]['MealTime'] // is 01:30 
$data['dietcontent'][1][2][6]['MealTime'] // is 01:30 
$data['dietcontent'][1][2][7]['MealTime'] // is 01:30 

是如何可以關注一下。現在我想在MealTime之後排序該數組中的$ mealNumber（第二個[]）位置。所以它會看起來像這樣：

$data['dietcontent'][1][1][1]['MealTime'] // is 01:30 
$data['dietcontent'][1][1][2]['MealTime'] // is 01:30 
$data['dietcontent'][1][1][3]['MealTime'] // is 01:30 
$data['dietcontent'][1][1][4]['MealTime'] // is 01:30 
$data['dietcontent'][1][1][5]['MealTime'] // is 01:30 
$data['dietcontent'][1][1][6]['MealTime'] // is 01:30 
$data['dietcontent'][1][1][7]['MealTime'] // is 01:30 
$data['dietcontent'][1][2][1]['MealTime'] // is 07:00 
$data['dietcontent'][1][2][2]['MealTime'] // is 07:00 
$data['dietcontent'][1][2][3]['MealTime'] // is 07:00 
$data['dietcontent'][1][2][4]['MealTime'] // is 07:00 
$data['dietcontent'][1][2][5]['MealTime'] // is 07:00 
$data['dietcontent'][1][2][6]['MealTime'] // is 07:00 
$data['dietcontent'][1][2][7]['MealTime'] // is 07:00 

我該怎麼做？！你的幫助真的很感謝！

Answer 1

foreach($data['dietcontent'] as &$day){ 
    //create temp sorting array 
    $mealsArr = array(); 
    foreach($day as $meal){ 
     $i = 1; 
     foreach($meal as $line){ 
      //put the lines into the temp array using meal time as key 
      $mealsArr[$line['MealTime']][$i] = $line; 
      $i++; 
     } 
    }   
    //sort the array by key (meal time!) 
    ksort($mealsArr); 
    //set up the new meals in the same format as before 
    $newMeals = array(); 
    $i = 1; 
    foreach($mealsArr as $lines){ 
     $newMeals[$i] = $lines; 
     $i++; 
    } 
    //put back the new lines 
    $day = $newMeals; 
} 

編輯：設置錯了鍵