Making global var from string in PHP?

For example^

  $locale = 'locale_array'.$开发者_StackOverflow中文版locale;
  global $$locale -?

$GLOBALS['locale_array'.$locale]

you can use session variables also. dont know if you need.

session_start('SID'); // important: use in every file you need the session vars
$_SESSION['loc'] = 'locale_array'.$locale;