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- <?php
- // +----------------------------------------------------------------------
- // | ThinkPHP [ WE CAN DO IT JUST THINK ]
- // +----------------------------------------------------------------------
- // | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
- // +----------------------------------------------------------------------
- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
- // +----------------------------------------------------------------------
- // | Author: liu21st <liu21st@gmail.com>
- // +----------------------------------------------------------------------
-
- namespace think;
-
- class Lang
- {
- /**
- * @var array 语言数据
- */
- private static $lang = [];
-
- /**
- * @var string 语言作用域
- */
- private static $range = 'zh-cn';
-
- /**
- * @var string 语言自动侦测的变量
- */
- protected static $langDetectVar = 'lang';
-
- /**
- * @var string 语言 Cookie 变量
- */
- protected static $langCookieVar = 'think_var';
-
- /**
- * @var int 语言 Cookie 的过期时间
- */
- protected static $langCookieExpire = 3600;
-
- /**
- * @var array 允许语言列表
- */
- protected static $allowLangList = [];
-
- /**
- * @var array Accept-Language 转义为对应语言包名称 系统默认配置
- */
- protected static $acceptLanguage = ['zh-hans-cn' => 'zh-cn'];
-
- /**
- * 设定当前的语言
- * @access public
- * @param string $range 语言作用域
- * @return string
- */
- public static function range($range = '')
- {
- if ($range) {
- self::$range = $range;
- }
-
- return self::$range;
- }
-
- /**
- * 设置语言定义(不区分大小写)
- * @access public
- * @param string|array $name 语言变量
- * @param string $value 语言值
- * @param string $range 语言作用域
- * @return mixed
- */
- public static function set($name, $value = null, $range = '')
- {
- $range = $range ?: self::$range;
-
- if (!isset(self::$lang[$range])) {
- self::$lang[$range] = [];
- }
-
- if (is_array($name)) {
- return self::$lang[$range] = array_change_key_case($name) + self::$lang[$range];
- }
-
- return self::$lang[$range][strtolower($name)] = $value;
- }
-
- /**
- * 加载语言定义(不区分大小写)
- * @access public
- * @param array|string $file 语言文件
- * @param string $range 语言作用域
- * @return mixed
- */
- public static function load($file, $range = '')
- {
- $range = $range ?: self::$range;
- $file = is_string($file) ? [$file] : $file;
-
- if (!isset(self::$lang[$range])) {
- self::$lang[$range] = [];
- }
-
- $lang = [];
-
- foreach ($file as $_file) {
- if (is_file($_file)) {
- // 记录加载信息
- App::$debug && Log::record('[ LANG ] ' . $_file, 'info');
-
- $_lang = include $_file;
-
- if (is_array($_lang)) {
- $lang = array_change_key_case($_lang) + $lang;
- }
- }
- }
-
- if (!empty($lang)) {
- self::$lang[$range] = $lang + self::$lang[$range];
- }
-
- return self::$lang[$range];
- }
-
- /**
- * 获取语言定义(不区分大小写)
- * @access public
- * @param string|null $name 语言变量
- * @param string $range 语言作用域
- * @return mixed
- */
- public static function has($name, $range = '')
- {
- $range = $range ?: self::$range;
-
- return isset(self::$lang[$range][strtolower($name)]);
- }
-
- /**
- * 获取语言定义(不区分大小写)
- * @access public
- * @param string|null $name 语言变量
- * @param array $vars 变量替换
- * @param string $range 语言作用域
- * @return mixed
- */
- public static function get($name = null, $vars = [], $range = '')
- {
- $range = $range ?: self::$range;
-
- // 空参数返回所有定义
- if (empty($name)) {
- return self::$lang[$range];
- }
-
- $key = strtolower($name);
- $value = isset(self::$lang[$range][$key]) ? self::$lang[$range][$key] : $name;
-
- // 变量解析
- if (!empty($vars) && is_array($vars)) {
- /**
- * Notes:
- * 为了检测的方便,数字索引的判断仅仅是参数数组的第一个元素的key为数字0
- * 数字索引采用的是系统的 sprintf 函数替换,用法请参考 sprintf 函数
- */
- if (key($vars) === 0) {
- // 数字索引解析
- array_unshift($vars, $value);
- $value = call_user_func_array('sprintf', $vars);
- } else {
- // 关联索引解析
- $replace = array_keys($vars);
- foreach ($replace as &$v) {
- $v = "{:{$v}}";
- }
- $value = str_replace($replace, $vars, $value);
- }
-
- }
-
- return $value;
- }
-
- /**
- * 自动侦测设置获取语言选择
- * @access public
- * @return string
- */
- public static function detect()
- {
- $langSet = '';
-
- if (isset($_GET[self::$langDetectVar])) {
- // url 中设置了语言变量
- $langSet = strtolower($_GET[self::$langDetectVar]);
- } elseif (isset($_COOKIE[self::$langCookieVar])) {
- // Cookie 中设置了语言变量
- $langSet = strtolower($_COOKIE[self::$langCookieVar]);
- } elseif (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
- // 自动侦测浏览器语言
- preg_match('/^([a-z\d\-]+)/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $matches);
- $langSet = strtolower($matches[1]);
- $acceptLangs = Config::get('header_accept_lang');
-
- if (isset($acceptLangs[$langSet])) {
- $langSet = $acceptLangs[$langSet];
- } elseif (isset(self::$acceptLanguage[$langSet])) {
- $langSet = self::$acceptLanguage[$langSet];
- }
- }
-
- // 合法的语言
- if (empty(self::$allowLangList) || in_array($langSet, self::$allowLangList)) {
- self::$range = $langSet ?: self::$range;
- }
-
- return self::$range;
- }
-
- /**
- * 设置语言自动侦测的变量
- * @access public
- * @param string $var 变量名称
- * @return void
- */
- public static function setLangDetectVar($var)
- {
- self::$langDetectVar = $var;
- }
-
- /**
- * 设置语言的 cookie 保存变量
- * @access public
- * @param string $var 变量名称
- * @return void
- */
- public static function setLangCookieVar($var)
- {
- self::$langCookieVar = $var;
- }
-
- /**
- * 设置语言的 cookie 的过期时间
- * @access public
- * @param string $expire 过期时间
- * @return void
- */
- public static function setLangCookieExpire($expire)
- {
- self::$langCookieExpire = $expire;
- }
-
- /**
- * 设置允许的语言列表
- * @access public
- * @param array $list 语言列表
- * @return void
- */
- public static function setAllowLangList($list)
- {
- self::$allowLangList = $list;
- }
- }
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