Golang and Arduino

<?php

namespace App\Support;

use Illuminate\Support\Facades\Log;

class HtmlToString {
        private static $return = [];

        public static function parse($input) {
                parse_str($input, $output);
                self::$return = [];
                self::_parse($output);
                return implode(".", self::$return);
        }

        private static function _parse($item, $depth = 0)
        {
                $key = key($item);
                self::$return[] =  $key;
                if(is_array($item[$key])) {
                        self::_parse($item[$key], $depth+1);
                }

        }
}

usage:

echo HtmlToString::parse("form[field][field2]");

results:

form.field.field2