在PHP中使用3个暗淡阵列对数组进行排序

Question

好的，即时通讯有一段非常困难的时间，并且尝试了很多解决方案，但是我无法将其运行。现在放弃了几个小时，但仍然一无所获。

我有一个数组，看起来像这样：$data['dietcontent'][1][1][1]

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

这阵，我想理清自己的进餐时间，即在$data['dietcontent'][1][1][1].MealTime

三维阵列是这种格式的存在：

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

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

好的，这很难解释。结构可以做得更好，但由于我只是从中解脱出来，所以我无能为力。

因此，我想给你一个例子，说明它现在的样子，以及我希望它看起来如何。

下面是一个例子：

$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 

是如何可以关注一下。现在我想在MealTime之后排序该数组中的$ mealNumber（第二个[]）位置。所以它会看起来像这样：

$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 

我该怎么做？！你的帮助真的很感谢！

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; 
} 

编辑：设置错了键