排序與PHP多維數組

Question

可能重複：
Sorting an associative array in PHP
Sorting a multidimensional array in PHP?

我有我有帶（子數組與數組排序...一些困難）類別和項目，但我無法對它們進行排序...

該陣列通常如下所示：

array 
    'Professional Services Applications' => 
    array 
     'Specialized Technologies' => 
     array 
      'Test Michiel, part 2' => 
      array 
       0 => string '2071' (length=4) 
     'JAVA' => 
     array 
      'Senior Apple Engineer' => 
      array 
       0 => string '2067' (length=4) 
      'Junior Apple Engineer' => 
      array 
       0 => string '2069' (length=4) 
     'Microsoft' => 
     array 
      'Senior ECM Consultant' => 
      array 
       0 => string '2059' (length=4) 
      'Junior ECM Consultant' => 
      array 
       0 => string '2082' (length=4) 
    'Business Applications' => 
    array 
     '' => 
     array 
      'Business Analyst' => 
      array 
       0 => string '2053' (length=4) 
      'Test business dingen ' => 
      array 
       0 => string '2062' (length=4) 
    'acADDemICT' => 
    array 
     '' => 
     array 
      'Test Michiel 

爲了把事情說清楚，
的類別是：專業服務應用，業務應用和acADDemICT。
的子類別是：專業，技術，JAVA和微軟 （有的沒有一個子類別！）

通過這個數組與此PHP代碼迴路我：

foreach ($job_list as $category => $subcategory) { 
    $page .= '<h2>' . $category .'</h2>'; 

    foreach ($subcategory as $name => $values) { 
     if (!empty($name)) { 
     $page .= '<h3>' . $name . '</h3>'; 
     } 

     foreach ($values as $vacancy => $link) { 
     $page .= '<li>' . l("$vacancy", "node/$link[0]") . '</li>'; 
     } 
    } 
} 

我已經嘗試了各種不同類型的排序功能（sort()，asort()，ksort()，...），但我並沒有與肺心病結束直接結果。

我的目標的一個字母順序的類別，子類別和項目...

所以，我的理想的結果應該是這樣的：

**aCCademICT:** 
    - Test Michiel 
**Business Applications:** 
    - Business Analyst 
    - Test business 
**Professional Services Applications:** 
    *JAVA* 
    - Junior Apple Engineer 
    - Senior Apple Enineer 
    *Microsoft* 
    - Junior ECM Consultant 
    - Senior ECM Consultant  
    *Specialize Technologies* 
    - Test Michiel, part 2 

UPDATE：
這裏我print_r：

Array ([Professional Services Applications] => Array ([Specialized Technologies] => Array ([Test van Michiel, part 2 ] => Array ([0] => 2071)) [JAVA] => Array ([Senior Apple Engineer ] => Array ([0] => 2067)) [Microsoft] => Array ([Junior ECM Consultant ] => Array ([0] => 2059) [Senior ECM Consultant] => Array ([0] => 2087))) [acADDemICT] => Array ([] => Array ([Test van Michiel ] => Array ([0] => 2063))) [Business Applications] => Array ([] => Array ([Business Analyst ] => Array ([0] => 2053) [Test business dingen ] => Array ([0] => 2062)))) 

Answer 1

你應該寫一個遞歸functi在那裏遍歷每個數組，如果元素本身是一個數組，則對它進行排序，然後對原始數組進行排序。

僞代碼：

function mysort($array) { 
    foreach ($array as $key=>$value) { 
    if (is_array($value)) $array[$key] = mysort($value); 
    } 
    sort($array); 
    return $array; 
} 

Answer 2

當你有三個層次鍵來進行排序，你有點要申請ksort到多維數組的所有二維層次：

$array = array(
    'Category Z' => array(
     'Category Z - Z' => array(
      'Category Z - Z - Z' => array('2701'), 
      'Category Z - Z - X' => array('2601'), 
     ) 
    ), 
    'Category A' => array(
     'Category A - A' => array(
      'Category A - A - A' => array('2200'), 
     ) 
    ), 
); 

$ksort = function($array) use (&$ksort) { 
    if (!is_array($array)) return $array; 
    ksort($array); 
    return array_map($ksort, $array); 
}; 

$array = $ksort($array); 

print_r($array); 

輸出：

Array 
(
    [Category A] => Array 
     (
      [Category A - A] => Array 
       (
        [Category A - A - A] => Array 
         (
          [0] => 2200 
         ) 

       ) 

     ) 

    [Category Z] => Array 
     (
      [Category Z - Z] => Array 
       (
        [Category Z - Z - X] => Array 
         (
          [0] => 2601 
         ) 

        [Category Z - Z - Z] => Array 
         (
          [0] => 2701 
         ) 

       ) 

     ) 

)