language detect

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language detect for websites

This is a short function used to detect if a browser indicates, that the user knows a particular language.

function test4Language($test_language)
{
  // language list available?
  $lang_variable = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
  if(empty($lang_variable))
  {
    // No? -> return false
    return 0;
  }

  // pull out the languages
  preg_match_all("/(?:([a-z]+)(?:[-a-zA-Z]*;\s*q=[0-9.]+)?,?)/", $lang_variable, $matches);

  return(in_array($test_language, $matches[1]));
}

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