How to create a nested array out of an array in PHP

Question

Say, we have an array: array(1,2,3,4,...) And I want to convert it to:

array(
    1=>array(
        2=>array(
            3=>array(
           


        

Answer 1

$x = count($array) - 1;
$temp = array();
for($i = $x; $i >= 0; $i--)
{
    $temp = array($array[$i] => $temp);
}