PHP mkdir() Examples

mkdir() function creates a new directory. If success, return TRUE, otherwise FALSE.
   bool mkdir(str path [, int mode = 0777, bool recursive = false, resource context])

<?PHP
    mkdir("tp/");  //create directory tp/ in current directory by default
	mkdir("./tp/"); //create directory tp/ in current directory
	if (!file_exists("../tp/"))
		mkdir("../tp/"); //create directory tp/ in upper directory if not exists	
?>

By default the new created directory can be accessed and modified by anybody. To create a user read only directory.

<?PHP
   mkdir("tp/",0400);  //read only
?>

If the recursive option is true, nested directories can be created.

<?PHP
	mkdir("1/2/3/",0400,true); //create 1/2/3/ under current directory
?>

rmdir() delete an empty directory.

<?PHP
    if (is_empty("tp/"))
		rmdir("tp/");
	
	function is_empty($dir)
	{
	   $rad = opendir($dir);
	   while (($file = readdir($rad)) !== false)
	   {
			if ($file != "." && $file != "..")
			{
				closedir($rad);
				return FALSE;
			}
	   }
	   closedir($rad);
	   return TRUE;
	}
?>