在PHP中合併3個陣列爲3d陣列

Question

我有3 陣列，所有相同的數字，我需要合併到一個3d陣列。

因此，像：

array1 = 'aud', 'usd', 'usd' 
array2 = 'item 1', item 2', 'item 3' 
array3 = '100', 300', 500' 

我需要製作喜歡的數組：

new_array1 = 'aud', 'item 1', '100' 
new_array2 = 'usd', 'item 2', '300' 

我已嘗試打印無下列情況：

$item = array(); 
for($i=0; $i < sizeof($currencies); $i++) { 
    $item[$i] = array('curr' => $currencies[$i], 
          'name' => $events[$i], 
          'result' => $actuals[$i]); 

} 

print_r($item); 

Answer 1

你必須當我得到正確的資源時會做錯事ULT與此腳本：

$arr1 = [ "aud", "usd", "usd" ]; 
$arr2 = [ "item 1", "item 2", "item 3" ]; 
$arr3 = [ 100, 300, 500 ]; 

$nestedArr = []; 

for($i = 0; $i < count($arr1); $i++) { 
    $nestedArr[$i] = [ 
     "curr" => $arr1[$i], 
     "name" => $arr2[$i], 
     "result" => $arr3[$i] 
    ]; 
} 

print_r($nestedArr); 

輸出：

Array (
    [0] => Array (
    [curr] => aud 
    [name] => item 1 
    [result] => 100 
) 
    [1] => Array (
    [curr] => usd 
    [name] => item 2 
    [result] => 300 
) 
    [2] => Array (
    [curr] => usd 
    [name] => item 3 
    [result] => 500 
) 
) 

請注意，我用PHP陣列短語法聲明數組[]，不應該有所作爲。這是很好的做法。

Answer 2

嗯，你的代碼應該產生一個二維數組，嘗試在

$item[$i] = array('curr' => $currencies[$i], 

刪除$i所以它看起來像這樣：

$item[] = array('curr' => $currencies[$i], 

還添加了3D陣列，您應該etiher靜態創建，像這樣：

$item = array(
    'usd' => array(
     item1 => array("100" => 100, "200" => 200, "300" => 300), 
     item2 => array("100" => 100, "200" => 200, "300" => 300), 
     item3 => array("100" => 100, "200" => 200, "300" => 300), 
    ), 
    'eur' => array(
     item1 => array("100" => 100, "200" => 200, "300" => 300), 
     item2 => array("100" => 100, "200" => 200, "300" => 300), 
     item3 => array("100" => 100, "200" => 200, "300" => 300), 
    ), 
    'gbp' => array(
     item1 => array("100" => 100, "200" => 200, "300" => 300), 
     item2 => array("100" => 100, "200" => 200, "300" => 300), 
     item3 => array("100" => 100, "200" => 200, "300" => 300), 
    ), 
),