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271 lines
7.4 KiB
271 lines
7.4 KiB
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace think;
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class Lang
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{
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/**
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* @var array 语言数据
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*/
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private static $lang = [];
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/**
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* @var string 语言作用域
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*/
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private static $range = 'zh-cn';
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/**
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* @var string 语言自动侦测的变量
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*/
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protected static $langDetectVar = 'lang';
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/**
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* @var string 语言 Cookie 变量
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*/
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protected static $langCookieVar = 'think_var';
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/**
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* @var int 语言 Cookie 的过期时间
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*/
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protected static $langCookieExpire = 3600;
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/**
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* @var array 允许语言列表
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*/
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protected static $allowLangList = [];
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/**
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* @var array Accept-Language 转义为对应语言包名称 系统默认配置
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*/
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protected static $acceptLanguage = ['zh-hans-cn' => 'zh-cn'];
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/**
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* 设定当前的语言
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* @access public
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* @param string $range 语言作用域
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* @return string
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*/
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public static function range($range = '')
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{
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if ($range) {
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self::$range = $range;
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}
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return self::$range;
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}
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/**
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* 设置语言定义(不区分大小写)
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* @access public
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* @param string|array $name 语言变量
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* @param string $value 语言值
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* @param string $range 语言作用域
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* @return mixed
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*/
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public static function set($name, $value = null, $range = '')
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{
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$range = $range ?: self::$range;
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if (!isset(self::$lang[$range])) {
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self::$lang[$range] = [];
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}
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if (is_array($name)) {
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return self::$lang[$range] = array_change_key_case($name) + self::$lang[$range];
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}
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return self::$lang[$range][strtolower($name)] = $value;
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}
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/**
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* 加载语言定义(不区分大小写)
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* @access public
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* @param array|string $file 语言文件
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* @param string $range 语言作用域
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* @return mixed
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*/
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public static function load($file, $range = '')
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{
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$range = $range ?: self::$range;
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$file = is_string($file) ? [$file] : $file;
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if (!isset(self::$lang[$range])) {
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self::$lang[$range] = [];
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}
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$lang = [];
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foreach ($file as $_file) {
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if (is_file($_file)) {
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// 记录加载信息
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App::$debug && Log::record('[ LANG ] ' . $_file, 'info');
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$_lang = include $_file;
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if (is_array($_lang)) {
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$lang = array_change_key_case($_lang) + $lang;
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}
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}
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}
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if (!empty($lang)) {
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self::$lang[$range] = $lang + self::$lang[$range];
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}
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return self::$lang[$range];
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}
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/**
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* 获取语言定义(不区分大小写)
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* @access public
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* @param string|null $name 语言变量
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* @param string $range 语言作用域
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* @return mixed
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*/
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public static function has($name, $range = '')
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{
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$range = $range ?: self::$range;
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return isset(self::$lang[$range][strtolower($name)]);
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}
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/**
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* 获取语言定义(不区分大小写)
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* @access public
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* @param string|null $name 语言变量
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* @param array $vars 变量替换
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* @param string $range 语言作用域
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* @return mixed
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*/
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public static function get($name = null, $vars = [], $range = '')
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{
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$range = $range ?: self::$range;
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// 空参数返回所有定义
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if (empty($name)) {
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return self::$lang[$range];
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}
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$key = strtolower($name);
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$value = isset(self::$lang[$range][$key]) ? self::$lang[$range][$key] : $name;
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// 变量解析
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if (!empty($vars) && is_array($vars)) {
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/**
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* Notes:
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* 为了检测的方便，数字索引的判断仅仅是参数数组的第一个元素的key为数字0
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* 数字索引采用的是系统的 sprintf 函数替换，用法请参考 sprintf 函数
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*/
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if (key($vars) === 0) {
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// 数字索引解析
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array_unshift($vars, $value);
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$value = call_user_func_array('sprintf', $vars);
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} else {
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// 关联索引解析
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$replace = array_keys($vars);
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foreach ($replace as &$v) {
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$v = "{:{$v}}";
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}
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$value = str_replace($replace, $vars, $value);
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}
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}
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return $value;
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}
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/**
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* 自动侦测设置获取语言选择
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* @access public
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* @return string
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*/
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public static function detect()
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{
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$langSet = '';
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if (isset($_GET[self::$langDetectVar])) {
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// url 中设置了语言变量
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$langSet = strtolower($_GET[self::$langDetectVar]);
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} elseif (isset($_COOKIE[self::$langCookieVar])) {
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// Cookie 中设置了语言变量
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$langSet = strtolower($_COOKIE[self::$langCookieVar]);
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} elseif (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
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// 自动侦测浏览器语言
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preg_match('/^([a-z\d\-]+)/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $matches);
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$langSet = strtolower($matches[1]);
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$acceptLangs = Config::get('header_accept_lang');
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if (isset($acceptLangs[$langSet])) {
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$langSet = $acceptLangs[$langSet];
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} elseif (isset(self::$acceptLanguage[$langSet])) {
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$langSet = self::$acceptLanguage[$langSet];
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}
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}
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if (preg_match('/^([a-z0-9\-_]{2,10})$/i', $langSet, $matches)) {
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$langSet = strtolower($matches[1]);
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} else {
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$langSet = self::$range;
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}
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// 合法的语言
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if (empty(self::$allowLangList) || in_array($langSet, self::$allowLangList)) {
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self::$range = $langSet ?: self::$range;
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}
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return self::$range;
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}
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/**
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* 设置语言自动侦测的变量
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* @access public
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* @param string $var 变量名称
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* @return void
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*/
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public static function setLangDetectVar($var)
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{
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self::$langDetectVar = $var;
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}
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/**
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* 设置语言的 cookie 保存变量
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* @access public
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* @param string $var 变量名称
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* @return void
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*/
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public static function setLangCookieVar($var)
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{
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self::$langCookieVar = $var;
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}
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/**
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* 设置语言的 cookie 的过期时间
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* @access public
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* @param string $expire 过期时间
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* @return void
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*/
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public static function setLangCookieExpire($expire)
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{
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self::$langCookieExpire = $expire;
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}
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/**
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* 设置允许的语言列表
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* @access public
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* @param array $list 语言列表
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* @return void
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*/
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public static function setAllowLangList($list)
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{
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self::$allowLangList = $list;
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}
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}
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