create a directory using php

// Create folder if not exist
		$folderName = 'images/gallery';
		$config['upload_path'] = $folderName;
		if(!is_dir($folderName))
		{
			mkdir($folderName, 0777);
		}<?php
// Create a directory recursively (make sure to sanitize if taken from input as always!)
mkdir("/path/to/my/dir", 0777, true);