4 * @brief translation support
6 * Get the language setting directly from system variables, bypassing Config::get()
7 * as database may not yet be configured.
9 * If possible, we use the value from the browser.
13 use Friendica\Core\Config;
15 require_once "include/dba.php";
17 if (! function_exists('get_browser_language')) {
19 * @brief get the prefered language from the HTTP_ACCEPT_LANGUAGE header
21 function get_browser_language() {
23 if (x($_SERVER, 'HTTP_ACCEPT_LANGUAGE')) {
24 // break up string into pieces (languages and q factors)
25 preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i',
26 $_SERVER['HTTP_ACCEPT_LANGUAGE'], $lang_parse);
29 if (count($lang_parse[1])) {
30 // go through the list of prefered languages and add a generic language
31 // for sub-linguas (e.g. de-ch will add de) if not already in array
32 for ($i = 0; $i < count($lang_parse[1]); $i++) {
33 $lang_list[] = strtolower($lang_parse[1][$i]);
34 if (strlen($lang_parse[1][$i])>3 ) {
35 $dashpos = strpos($lang_parse[1][$i], '-');
36 if (!in_array(substr($lang_parse[1][$i], 0, $dashpos), $lang_list ) ) {
37 $lang_list[] = strtolower(substr($lang_parse[1][$i], 0, $dashpos));
44 // check if we have translations for the preferred languages and pick the 1st that has
45 for ($i = 0; $i < count($lang_list); $i++) {
46 $lang = $lang_list[$i];
47 if ($lang === 'en' || (file_exists("view/lang/$lang") && is_dir("view/lang/$lang"))) {
52 if (isset($preferred)) {
56 // in case none matches, get the system wide configured language, or fall back to English
57 return Config::get('system', 'language', 'en');
61 function push_lang($language) {
66 if ($language === $lang) {
70 if (isset($a->strings) && count($a->strings)) {
71 $a->stringsave = $a->strings;
73 $a->strings = array();
74 load_translation_table($language);
81 if ($lang === $a->langsave) {
85 if (isset($a->stringsave)) {
86 $a->strings = $a->stringsave;
88 $a->strings = array();
96 if (! function_exists('load_translation_table')) {
98 * load string translation table for alternate language
100 * first plugin strings are loaded, then globals
102 * @param string $lang language code to load
104 function load_translation_table($lang) {
107 $a->strings = array();
108 // load enabled plugins strings
109 $plugins = dba::select('addon', array('name'), array('installed' => true));
110 while ($p = dba::fetch($plugins)) {
112 if (file_exists("addon/$name/lang/$lang/strings.php")) {
113 include("addon/$name/lang/$lang/strings.php");
117 if (file_exists("view/lang/$lang/strings.php")) {
118 include("view/lang/$lang/strings.php");
123 // translate string if translation exists
125 if (! function_exists('t')) {
130 if (x($a->strings,$s)) {
131 $t = $a->strings[$s];
132 return is_array($t)?$t[0]:$t;
137 if (! function_exists('tt')){
138 function tt($singular, $plural, $count){
142 if (x($a->strings,$singular)) {
143 $t = $a->strings[$singular];
144 $f = 'string_plural_select_' . str_replace('-','_',$lang);
145 if (! function_exists($f))
146 $f = 'string_plural_select_default';
148 return is_array($t)?$t[$k]:$t;
158 // provide a fallback which will not collide with
159 // a function defined in any language file
161 if (! function_exists('string_plural_select_default')) {
162 function string_plural_select_default($n) {
169 * @brief Return installed languages codes as associative array
171 * Scans the view/lang directory for the existence of "strings.php" files, and
172 * returns an alphabetical list of their folder names (@-char language codes).
173 * Adds the english language if it's missing from the list.
175 * Ex: array('de' => 'de', 'en' => 'en', 'fr' => 'fr', ...)
179 function get_available_languages() {
181 $strings_file_paths = glob('view/lang/*/strings.php');
183 if (is_array($strings_file_paths) && count($strings_file_paths)) {
184 if (!in_array('view/lang/en/strings.php', $strings_file_paths)) {
185 $strings_file_paths[] = 'view/lang/en/strings.php';
187 asort($strings_file_paths);
188 foreach ($strings_file_paths as $strings_file_path) {
189 $path_array = explode('/', $strings_file_path);
190 $langs[$path_array[2]] = $path_array[2];