排序陣列使用內陣列中在PHP或MySQL

我有一個陣列這樣

陣列[0] [0]，[1] [0]，[2] [0]是問題，並在數組[0] [1]，[1] [1]，[2] [1]是對這些問題的答案。
現在我想對這個數組的數量進行排序。
第一個問題只有一個答案和第二個有兩個答案和第三個有三個答案。
對於該問題的答案數，排序後的數組應該按降序排列。是否有無法在sql中實現這一點？或者我們如何在PHP中排序？希望我的問題很明確。先謝謝你。

Array 
(
    [0] => Array 
     (
      [0] => Array 
       (
        [0] => 12 
        [1] => 110 
        [2] => Tom 
        [3] => [email protected] 
        [4] => Hello tom how are you? 
        [5] => 2013-01-03 14:54:07 
       ) 

      [1] => Array 
       (
        [0] => Array 
         (
          [0] => 12 
          [1] => Yes i am fine. 
          [2] => Arun 
          [3] => [email protected] 
          [4] => 2013-01-03 14:55:22 
         ) 
       ) 
     ) 
    [1] => Array 
     (
      [0] => Array 
       (
        [0] => 12 
        [1] => 110 
        [2] => Tom 
        [3] => [email protected] 
        [4] => Hello tom how are you. 
        [5] => 2013-01-03 14:54:07 
       ) 

      [1] => Array 
       (
        [0] => Array 
         (
          [0] => 12 
          [1] => Yes i am fine 
          [2] => Arun 
          [3] => [email protected] 
          [4] => 2013-01-03 14:55:22 
         ) 
        [1] => Array 
         (
          [0] => 12 
          [1] => Yes i am fine 
          [2] => Arun 
          [3] => [email protected] 
          [4] => 2013-01-03 14:55:22 
         ) 
       ) 
     ) 
    [2] => Array 
     (
      [0] => Array 
       (
        [0] => 12 
        [1] => 110 
        [2] => Tom 
        [3] => [email protected] 
        [4] => Hello tom how are you. 
        [5] => 2013-01-03 14:54:07 
       ) 
      [1] => Array 
       (
        [0] => Array 
         (
          [0] => 12 
          [1] => Yes i am fine 
          [2] => Arun 
          [3] => [email protected] 
          [4] => 2013-01-03 14:55:22 
         ) 
        [1] => Array 
         (
          [0] => 12 
          [1] => Yes i am fine 
          [2] => Arun 
          [3] => [email protected] 
          [4] => 2013-01-03 14:55:22 
         ) 
       [2] => Array 
         (
          [0] => 12 
          [1] => Yes i am fine 
          [2] => Arun 
          [3] => [email protected] 
          [4] => 2013-01-03 14:55:22 
         ) 
       ) 
     )

來源

2013-01-04 Vignesh Gopalakrishnan

究竟是什麼，你是想用這個做什麼？ – 2013-01-04 05:54:12

按降序對問題進行排序，以便首先顯示具有最多答案的用戶。你是否清楚我的問題？ –

當您將數據導出到SO時，最好使用'var_export'，這樣人們可以將您提供的數據複製到測試中。 – Supericy

這應該工作：

function cmp($a, $b) 
{ 
    return count($a[1]) > count($b[1]) ? -1 : 1; 
} 

usort($data, 'cmp');

或者，如果你正在使用PHP 5.3.0或更高，則可以使用：

usort($data, function ($a, $b) { 
    return count($a[1]) > count($b[1]) ? -1 : 1; 
});

來源

2013-01-04 05:59:20 Supericy

+1 - Thankyou Supericy。它的工作正常。我需要更多的時間來理解和測試你的答案。 –

排序陣列使用內陣列中在PHP或MySQL

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