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

I.e last element becomes the value of final array.

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

Answer 1

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;