4 * @brief translation support
6 * Get the language setting directly from system variables, bypassing get_config()
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(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 === $lang)
69 if(isset($a->strings) && count($a->strings)) {
70 $a->stringsave = $a->strings;
72 $a->strings = array();
73 load_translation_table($language);
80 if($lang === $a->langsave)
83 if(isset($a->stringsave))
84 $a->strings = $a->stringsave;
86 $a->strings = array();
94 if(! function_exists('load_translation_table')) {
96 * load string translation table for alternate language
98 * first plugin strings are loaded, then globals
100 * @param string $lang language code to load
102 function load_translation_table($lang) {
105 $a->strings = array();
106 // load enabled plugins strings
107 $plugins = q("SELECT name FROM addon WHERE installed=1;");
108 if ($plugins!==false) {
109 foreach($plugins as $p) {
111 if(file_exists("addon/$name/lang/$lang/strings.php")) {
112 include("addon/$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];