array:8 [
      "text" => "rt_field"
      "title" => "rt_field"
      "type_id" => "rt_attr_uint"
      "author_id" => "rt_attr_uint"
      "created_at" => "rt_attr_timestamp"
      "recommended_at" => "rt_attr_timestamp"
      "deleted_at" => "rt_attr_timestamp"
      "feeds" => "rt_attr_multi"
    ]

array:8 [
      "text" => "rt_attr_string"
      "text_txt" => "rt_field"
      "title" => "rt_attr_string"
      "title_txt" => "rt_field"
      "type_id" => "rt_attr_uint"
      "author_id" => "rt_attr_uint"
      "created_at" => "rt_attr_timestamp"
      "recommended_at" => "rt_attr_timestamp"
      "deleted_at" => "rt_attr_timestamp"
      "feeds" => "rt_attr_multi"
    ]

foreach ($array_param as $key => $value) {
    if ($value == 'rt_field'){
        $array_param_second[$key] = 'rt_attr_string';
        $array_param[$key] = $key.'_txt';
    }
}