PHP language detection

Question

I\'m trying to build multilangual site.

I use this piece of code to detect users language. If you havent chosen a language, it will include your language file based

Answer 1

Try This

function getUserLanguage() {
    $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($langs, SORT_NUMERIC);
        }
    }
    //extract most important (first)
    reset($langs);
    $lang = key($langs);

    //if complex language simplify it
    if (stristr($lang, '-')) {
        list($lang) = explode('-', $lang);
    }

    return $lang;
}