array2objectRecursive.php

<?php
function convert_to_object($array) {
    $object = new stdClass();

    foreach ($array as $key => $value) {

        if (is_array($value)) {
            $value = convert_to_object($value);
        }

        $object->$key = $value;
    }

    return $object;
}

$sample = [
  'first' => [ 
    'secound' => [
      ''
     ]
   ],
]