使用兩個不同的鍵或值排列多維數組

Question

這個例子依賴於兩個鍵/值，而不是像我在堆棧溢出中看到的許多其他例子那樣。除了通過primary鍵排序數組以外，我還想按age鍵對它進行排序，以便我可以在下面實現預期結果。我應該如何修改下面的代碼來實現它？ CURRENT RESULT有A-6-6鍵錯位，因爲我的代碼還沒有處理它。

原始數組

$myarray = [ 
    'Z-9-0' => [ 
     'primary' => true, 
     'age' => 55 
    ], 
    'C-7-1' => [ 
     'primary' => false, 
     'age' => 60 
    ], 
    'K-1-9' => [ 
     'primary' => true, 
     'age' => 60 
    ], 
    'C-2-1' => [ 
     'primary' => false, 
     'age' => 40 
    ], 
    'F-6-6' => [ 
     'primary' => true, 
     'age' => 60 
    ], 
    'A-6-6' => [ 
     'primary' => true, 
     'age' => 30 
    ] 
]; 

預期的結果

(
    [F-6-6] => Array 
     (
      [primary] => 1 
      [age] => 60 
     ) 
    [K-1-9] => Array 
     (
      [primary] => 1 
      [age] => 60 
     ) 
    [Z-9-0] => Array 
     (
      [primary] => 1 
      [age] => 55 
     ) 
    [A-6-6] => Array 
     (
      [primary] => 1 
      [age] => 30 
     ) 
    [C-7-1] => Array 
     (
      [primary] => 
      [age] => 60 
     ) 
    [C-2-1] => Array 
     (
      [primary] => 
      [age] => 40 
     ) 
) 

CODE

uasort($myarray, function($a, $b) { 
    return strcmp($b['primary'], $a['primary']); 
}); 

print_r($org); 

當前結果

正如您所見，A-6-6與上述預期結果相比並不合適。所以它應該出現的位置越高，age就越大。

(
    [A-6-6] => Array 
     (
      [primary] => 1 
      [age] => 30 
     ) 
    [F-6-6] => Array 
     (
      [primary] => 1 
      [age] => 60 
     ) 
    [K-1-9] => Array 
     (
      [primary] => 1 
      [age] => 60 
     ) 
    [Z-9-0] => Array 
     (
      [primary] => 1 
      [age] => 55 
     ) 
    [C-7-1] => Array 
     (
      [primary] => 
      [age] => 60 
     ) 
    [C-2-1] => Array 
     (
      [primary] => 
      [age] => 40 
     ) 
) 

Answer 1

我想你可以添加額外的檢查中當「主要」鍵的值相等」的uasort的「年齡」的關鍵。

uasort($myarray, function($a, $b) { 
    if ($b['primary'] === $a['primary']) { 
     return $b['age'] > $a['age']; 
    } 
    return strcmp($b['primary'], $a['primary']); 
}); 

Demo