Making global var from string in PHP?

For example^

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

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$GLOBALS['locale_array'.$locale]

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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;