How can I make File inside Folder

For example, I want to make a Folder named "Diamond", and create Stone.yaml inside Diamond Folder(with mkdir)

How can?

 

PHP:


if(!is_dir($this->getDataFolder() . "blocks")) {
            mkdir($this->getDataFolder() . "blocks"); // Getting the data folder
        }
        $this->saveConfig();
        $this->saveResource("blocks" . DIRECTORY_SEPARATOR . "stone.yml");


 

Then How can I create "Item" Folder before creating "blocks"?

and if "Item" Folder is already created, How can I create "blocks" folder inside "Item" folder.

like Item\blocks\stone.yml

 

PHP:

if(!is_dir($this->getDataFolder() . "Item")) {
  mkdir($this->getDataFolder() . "Item");
}
if(!is_dir($this->getDataFolder() . "Blocks")) {
  mkdir($this->getDataFolder() . DIRECTORY_SEPARATOR."Item".DIRECTORY_SEPARATOR"Blocks");
}
$this->saveConfig();
$this->saveResource("Item" . DIRECTORY_SEPARATOR ."Blocks".DIRECTORY_SEPARATOR . "stone.yml");