PHP将一维数组转换为多维数组

Question

I have one array as

$tmpArr =  array('A', 'B', 'C');

I want to process this array and want new array as

$tmpArr[A][B][C] = C

Ie last element becomes the value of final array.

Can anyone suggest the solution? Please help. Thanks in advance

Answer 1

$tmpArr =  array('A', 'B', 'C');
$array = array();
foreach (array_reverse($tmpArr) as $arr)
      $array = array($arr => $array);

Output:

Array
(
    [A] => Array
        (
            [B] => Array
                (
                    [C] => Array
                        (
                        )

                )

        )

)

Answer 2

Iterate the array of keys and use a reference for the end of the chain:

$arr = array();
$ref = &$arr;
foreach ($tmpArr as $key) {
    $ref[$key] = array();
    $ref = &$ref[$key];
}
$ref = $key;
$tmpArr = $arr;

Answer 3

$tmpArr[$tmpArr[0]][$tmpArr[1]][$tmpArr[2]] = $tmpArr[2];

那是你要的吗？