如何在CodeIgniter中對directory_helper創建的數組進行排序

Question

因此，我使用Directory Helper中的directory_map函數，並且想知道如何編輯該函數（或者擴展它或某個函數），以便將它排序它給了我多維數組。

這是它當前生成的數組;

Array 
(
    [publications] => Array 
    (
     [policy_documents] => Array 
      (
       [_careers] => Array 
        (
         [0] => careers.pdf 
        ) 
       [_background_quality_reports] => Array 
        (
         [0] => industry.pdf 
         [1] => international.pdf 
         [2] => departmental_resources.pdf 
         [3] => contracts.pdf 
         [4] => research_and_development.pdf 
         [5] => trade.pdf 
        ) 
       [_pre_release_access_list] => Array 
        (
         [0] => pre_release_access_list.pdf 
        ) 
      ) 
     [people] => Array 
      (
       [health] => Array 
        (
         [very_serious_injuries] => Array 
          (
           [_1_january_2013] => Array 
            (
             [0] => 1_january_2013.pdf 
            ) 
          ) 
        ) 
       [military] => Array 
        (
         [quarterly_manning_report] => Array 
          (
           [_1_january_2013] => Array 
            (
             [0] => 1_january_2013.pdf 
            ) 
          ) 
         [monthly_manning_report] => Array 
          (
           [_20110201_1_february_2011] => Array 
            (
             [0] => 1_february_2011.xls 
             [1] => key_points.html 
             [2] => 1_february_2011.pdf 
            ) 
           [_20110301_1_march_2011] => Array 
            (
             [0] => 1 March 2011.pdf 
            ) 
           [_20110501_1_may_2011] => Array 
            (
             [0] => 1 May 2011.pdf 
            ) 
           [_20110401_1_april_2011] => Array 
            (
             [0] => 1 April 2011.pdf 
            ) 
          ) 
        ) 
       [civilian] => Array 
        (
         [civilian_personnel_report] => Array 
          (
           [_1_april_2012] => Array 
            (
             [0] => 1_april_2012.pdf 
            ) 
           [_1_october_2012] => Array 
            (
             [0] => 1_october_2012.pdf 
            ) 
           [_1_january_2013] => Array 
            (
             [0] => 1_january_2013.pdf 
             [1] => key_points.html 
            ) 
           [_1_july_2012] => Array 
            (
             [0] => 1_july 2012.pdf 
            ) 
          ) 
        ) 
       [search_and_rescue] => Array 
        (
         [monthly] => Array 
          (
           [_1_February_2013] => Array 
            (
             [0] => 1_february_2013.pdf 
            ) 
          ) 
         [annual] => Array 
          (
           [_2012] => Array 
            (
             [0] => 2012.pdf 
            ) 
          ) 
         [quarterly] => Array 
          (
           [_q3_2012] => Array 
            (
             [0] => q3_2012.pdf 
            ) 
          ) 
        ) 
      ) 
     [estate] => Array 
      (
      ) 
    ) 
) 

這是有點混亂，但你明白了。任何在我的模型中圍繞變量包裝sort（）或asort（）的嘗試都會導致錯誤。這就是爲什麼我認爲我可能需要編輯此功能，或者也許我創建一個新的...

Answer 1

由於dir名稱位於鍵中且文件名在值中，因此必須將數組分開排列文件和目錄。

$dir_map = dir_map_sort(directory_map('folder/name'));

/** 
* Sorts the return of directory_map() alphabetically 
* directories listed before files 
* 
* Example: 
* a_dir/ 
* b_dir/ 
* a_file.dat 
* b_file.dat 
*/ 
function dir_map_sort($array) 
{ 
    $dirs = array(); 
    $files = array(); 

    foreach ($array as $key => $val) 
    { 
     if (is_array($val)) // if is dir 
     { 
      // run dir array through function to sort subdirs and files 
      // unless it's empty 
      $dirs[$key] = (!empty($array)) ? dir_map_sort($val) : $val; 
     } 
     else 
     { 
      $files[$key] = $val; 
     } 
    } 

    ksort($dirs); // sort by key (dir name) 
    asort($files); // sort by value (file name) 

    // put the sorted arrays back together 
    // swap $dirs and $files if you'd rather have files listed first 
    return array_merge($dirs, $files); 
} 

OR

/** 
* Sorts the return of directory_map() alphabetically 
* with directories and files mixed 
* 
* Example: 
* a_dir/ 
* a_file.dat 
* b_dir/ 
* b_file.dat 
*/ 
function dir_map_sort($array) 
{ 
    $items = array(); 

    foreach ($array as $key => $val) 
    { 
     if (is_array($val)) // if is dir 
     { 
      // run dir array through function to sort subdirs and files 
      // unless it's empty 
      $items[$key] = (!empty($array)) ? dir_map_sort($val) : $val; 
     } 
     else 
     { 
      $items[$val] = $val; 
     } 
    } 

    ksort($items); // sort by key 

    return $items; 
} 

Answer 2

您可以在SQL SELECT語句（ORDER BY XXX），或在控制器使用這些方法中的一種，在

訂購

[1]：http://php.net/manual/en/array.sorting.php php.net