Arrays

<?php

function killIndex($theKeyArray,$theMainArray){
    foreach($theMainArray AS $key => $data){
        if(in_array($key,$theKeyArray)){
            $theMainArray[$key] = null;
            unset($theMainArray[$key]);
        }elseif(is_array($data)){
            $theMainArray[$key] = killIndex($theKeyArray,$data);
        }
    }

    return $theMainArray;

}