/**
* Create a temp directory
*
* @param string $prefix A prefix for the directory name
* @param octal $mode The permissions for the directory
* @return string The path to the newly created temp directory
*/
public static function dir($prefix = "temp", $mode = 0775)
{
$tmpdir = self::getDir();
$prefix = Dir::sanitizeName($prefix);
do {
$rand = substr(md5(microtime(true)), 0, 6);
$path = $tmpdir . DIRECTORY_SEPARATOR . $prefix . $rand;
} while (@mkdir($path, $mode) === false);
self::registerPath($path, true);
return $path;
}
