_localization.tools.php

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<?php

    function parseHttpRequestedLanguage() {

$langs = array();

if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
    // break up string into pieces (languages and q factors)
    preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $lang_parse);

    if (count($lang_parse[1])) {
        // create a list like "en" => 0.8
        $langs = array_combine($lang_parse[1], $lang_parse[4]);
        
        // set default to 1 for any without q factor
        foreach ($langs as $lang => $val) {
            if ($val === '') $langs[$lang] = 1;
        }

        // sort list based on value     
        arsort($langs, SORT_NUMERIC);
    }
}

return $langs;

    }




/* SDF funzione per ricodificare in UTF-8 (utile anche per contenuto da codificare in Json */
function string2utf8( $mixed ) {
    if (is_array($mixed)) {
        foreach ($mixed as $key => $value) {
            $mixed[$key] = string2utf8($value);
        }
    } elseif (is_string($mixed)) {
        return mb_convert_encoding($mixed, "UTF-8", "UTF-8");
    }
    return $mixed;
}






?>