PHP flat array to nested ["a", "b", "c"] to ["a" =>["b"=>["c"]]] [closed]

Question

As the title with the example says, I need a flat array to be nested by each following key being the previous value.

Example:

array("I", "need", "this", "to", "be", "nested"); // To: array("I" => array("need" => array("this" => array("to" => array("be" => array("nested")))))) 

Answer 1

Here is a possible implementation:

<?php  function make_nested($array) {     if (count($array) < 2)         return $array;     $key = array_shift($array);     return array($key => make_nested($array)); }  print_r(make_nested(array("I", "need", "this", "to", "be", "nested"))); 

If you don't like recursion, here is an iterative version:

function make_nested($array) {     if (!$array)         return array();     $result = array(array_pop($array));     while ($array)         $result = array(array_pop($array) => $result);     return $result; }