Online PHP editor | refs for 4RQDT

@ 2019-06-21T12:30:19Z

<?php

$tree = [
       10 => [],
       11 => [
                4 => [],
                5 => [],
                6 => []
       ]
    ];
$path = array(11,5,0);
$inseration = array('A','B');
$current = &$tree;
foreach($path as $key){
  $current = &$current[$key];
}
$current = $inseration;
print_r($tree);