How to detect and create directories in a php loop

// Loop to create directories
function mk_dir($dir, $mode = 0755)
{
if (is_dir($dir) || @mkdir($dir,$mode)) return true;
if (!mk_dir(dirname($dir),$mode)) return false;
return @mkdir($dir,$mode);
}

Method 2:

$filepath = "test/upload/2010/image.gif";
createDir(dirname($filepath));
//Then you can move_uploaded_file !
/*
* Function: Loop to detect and create folders
* Parameters: $path Folder path
* Return:
*/
function createDir($path){
if (! file_exists($path)){
createDir(dirname($path));
mkdir($path, 0777);
}
}
?>