PHP按值重新排序陣列

Question

我有一個數組，我想通過值來使用數組。 這裏是現有陣列：

1 => Array (9) 
    OrgID => "XXXX" 
    DOB => "1970-01-01" 
    PersonID => "111111" 
    ExpDate => "2013-07-31" 
    Level => "WELITE" 
    Status => "Active" 
    FName => "Jane" 
    LName => "Doe" 
    Checked => null 
2 => Array (9) 
    OrgID => "XXXX" 
    DOB => "1970-01-01" 
    PersonID => "222222" 
    ExpDate => "2013-07-31" 
    Level => "WELITE" 
    Status => "Active" 
    FName => "Jane" 
    LName => "Doe" 
    Checked => null 
3 => Array (9) 
    OrgID => "XXXX" 
    DOB => "1970-01-01" 
    PersonID => "22222" 
    ExpDate => "2013-07-31" 
    Level => "WELITE" 
    Status => "Active" 
    FName => "Jane" 
    LName => "Doe" 
    Checked => null 

我想基於一個名爲水平的值的數組訴諸成以下，並創建一個關鍵：

WELITE => (3) 
    1 => Array (9) 
    OrgID => "XXXX" 
    DOB => "1970-01-01" 
    PersonID => "111111" 
    ExpDate => "2013-07-31" 
    Status => "Active" 
    FName => "Jane" 
    LName => "Doe" 
    Checked => null 
2 => Array (9) 
    OrgID => "XXXX" 
    DOB => "1970-01-01" 
    PersonID => "222222" 
    ExpDate => "2013-07-31" 
    Status => "Active" 
    FName => "Jane" 
    LName => "Doe" 
    Checked => null 
3 => Array (9) 
    OrgID => "XXXX" 
    DOB => "1970-01-01" 
    PersonID => "22222" 
    ExpDate => "2013-07-31" 
    Status => "Active" 
    FName => "Jane" 
    LName => "Doe" 
    Checked => null 

這裏是我到目前爲止已經試過：

$sort = array(); 
foreach($WlevelArray as $k=>$v) { 
    $sort['Level'][$k] = $v['Level']; 
    $sort['OrgID'][$k] = $v['OrgID']; 
} 
array_multisort($sort['Level'], SORT_DESC, $sort['OrgID'], SORT_ASC, $WlevelArray); 

但這會產生兩個數組。

Answer 1

基於我認爲你的目標是什麼，我對你正在尋找的東西有點困惑我已經包含了下面的代碼。

設置陣列：

$example1 = array(
    "OrgID" => "XXXX", 
    "DOB" => "1970-01-01", 
    "PersonID" => "111111", 
    "ExpDate" => "2013-07-31", 
    "Level" => "WELITE", 
    "Status" => "Active", 
    "FName" => "Jane", 
    "LName" => "Doe", 
    "Checked" => null 
); 

$example2 = array(
    "OrgID" => "XXXX", 
    "DOB" => "1970-01-01", 
    "PersonID" => "222222", 
    "ExpDate" => "2013-07-31", 
    "Level" => "WELITE", 
    "Status" => "Active", 
    "FName" => "Jane", 
    "LName" => "Doe", 
    "Checked" => null 
); 

$example3 = array(
    "OrgID" => "XXXX", 
    "DOB" => "1970-01-01", 
    "PersonID" => "22222", 
    "ExpDate" => "2013-07-31", 
    "Level" => "WELITE", 
    "Status" => "Active", 
    "FName" => "Jane", 
    "LName" => "Doe", 
    "Checked" => null 
); 

// Initial array 
$initArray = array($example1, $example2, $example3); 

現在讓我們 '排序'：

$finalArray = array(); 
$i = 0; 
foreach ($initArray as $key => $value) { 
    (isset($value['Level'])) ? $finalArray[$value['Level']][$i] = $value : NULL; 
    unset($finalArray[$value['Level']][$i]['Level']); 
    $i++; 
} 

echo '<pre>', print_r($finalArray, true), '</pre>'; 

輸出：

Array 
(
    [WELITE] => Array 
     (
      [0] => Array 
       (
        [OrgID] => XXXX 
        [DOB] => 1970-01-01 
        [PersonID] => 111111 
        [ExpDate] => 2013-07-31 
        [Status] => Active 
        [FName] => Jane 
        [LName] => Doe 
        [Checked] => 
       ) 

      [1] => Array 
       (
        [OrgID] => XXXX 
        [DOB] => 1970-01-01 
        [PersonID] => 222222 
        [ExpDate] => 2013-07-31 
        [Status] => Active 
        [FName] => Jane 
        [LName] => Doe 
        [Checked] => 
       ) 

      [2] => Array 
       (
        [OrgID] => XXXX 
        [DOB] => 1970-01-01 
        [PersonID] => 22222 
        [ExpDate] => 2013-07-31 
        [Status] => Active 
        [FName] => Jane 
        [LName] => Doe 
        [Checked] => 
       ) 

     ) 

) 

---

編輯

我發現一個問題，改變「級別」值時，指數將繼續增加，因爲我用的是一個自動遞增變量$i。所以我加了sort($finalArray[$value['Level']]);，它重置了索引值。

foreach ($initArray as $key => $value) { 
    (isset($value['Level'])) ? $finalArray[$value['Level']][$i] = $value : NULL; 
    unset($finalArray[$value['Level']][$i]['Level']); 
    // Add this line to fix indexes 
    sort($finalArray[$value['Level']]); 
    $i++; 
}