Discuz lang 函数 加载语言包函数
/**
* 加载语言
* 语言文件统一为 $lang = array();
* @param $file - 语言文件，可包含路径如 forum/xxx home/xxx
* @param $langvar - 语言文字索引
* @param $vars - 变量替换数组
* @return 语言文字
*/
function lang($file, $langvar = null, $vars = array(), $default = null) {
global $_G;
$fileinput = $file;
list($path, $file) = explode('/', $file);
if(!$file) {
$file = $path;
$path = '';
}
if(strpos($file, ':') !== false) {
$path = 'plugin';
list($file) = explode(':', $file);
}
if($path != 'plugin') {
$key = $path == '' ? $file : $path.'_'.$file;
if(!isset($_G['lang'][$key])) {
include DISCUZ_ROOT.'./source/language/'.($path == '' ? '' : $path.'/').'lang_'.$file.'.php';
$_G['lang'][$key] = $lang;
}
if(defined('IN_MOBILE') && !defined('TPL_DEFAULT')) {
include DISCUZ_ROOT.'./source/language/mobile/lang_template.php';
$_G['lang'][$key] = array_merge($_G['lang'][$key], $lang);
}
if($file != 'error' && !isset($_G['cache']['pluginlanguage_system'])) {
loadcache('pluginlanguage_system');
}
if(!isset($_G['hooklang'][$fileinput])) {
if(isset($_G['cache']['pluginlanguage_system'][$fileinput]) && is_array($_G['cache']['pluginlanguage_system'][$fileinput])) {
$_G['lang'][$key] = array_merge($_G['lang'][$key], $_G['cache']['pluginlanguage_system'][$fileinput]);
}
$_G['hooklang'][$fileinput] = true;
}
$returnvalue = &$_G['lang'];
} else {
if(empty($_G['config']['plugindeveloper'])) {
loadcache('pluginlanguage_script');
} elseif(!isset($_G['cache']['pluginlanguage_script'][$file]) && preg_match("/^+*$/i", $file)) {
if(@include(DISCUZ_ROOT.'./data/plugindata/'.$file.'.lang.php')) {
$_G['cache']['pluginlanguage_script'][$file] = $scriptlang[$file];
} else {
loadcache('pluginlanguage_script');
}
}
$returnvalue = & $_G['cache']['pluginlanguage_script'];
$key = &$file;
}
$return = $langvar !== null ? (isset($returnvalue[$key][$langvar]) ? $returnvalue[$key][$langvar] : null) : $returnvalue[$key];
$return = $return === null ? ($default !== null ? $default : $langvar) : $return;
$searchs = $replaces = array();
if($vars && is_array($vars)) {
foreach($vars as $k => $v) {
$searchs[] = '{'.$k.'}';
$replaces[] = $v;
}
}
if(is_string($return) && strpos($return, '{_G/') !== false) {
preg_match_all('/\{_G\/(.+?)\}/', $return, $gvar);
foreach($gvar as $k => $v) {
$searchs[] = $v;
$replaces[] = getglobal($gvar[$k]);
}
}
$return = str_replace($searchs, $replaces, $return);
return $return;
}
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