285 lines
7.4 KiB
PHP
285 lines
7.4 KiB
PHP
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<?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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* 多语言信息
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* @var array
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*/
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private $lang = [];
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/**
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* 当前语言
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* @var string
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*/
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private $range = 'zh-cn';
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/**
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* 多语言自动侦测变量名
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* @var string
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*/
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protected $langDetectVar = 'lang';
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/**
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* 多语言cookie变量
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* @var string
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*/
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protected $langCookieVar = 'think_var';
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/**
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* 允许的多语言列表
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* @var array
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*/
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protected $allowLangList = [];
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/**
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* Accept-Language转义为对应语言包名称 系统默认配置
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* @var string
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*/
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protected $acceptLanguage = [
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'zh-hans-cn' => 'zh-cn',
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];
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/**
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* 应用对象
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* @var App
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*/
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protected $app;
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public function __construct(App $app)
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{
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$this->app = $app;
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}
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// 设定当前的语言
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public function range($range = '')
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{
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if ('' == $range) {
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return $this->range;
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} else {
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$this->range = $range;
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}
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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 $range 语言作用域
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* @return mixed
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*/
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public function set($name, $value = null, $range = '')
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{
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$range = $range ?: $this->range;
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// 批量定义
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if (!isset($this->lang[$range])) {
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$this->lang[$range] = [];
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}
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if (is_array($name)) {
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return $this->lang[$range] = array_change_key_case($name) + $this->lang[$range];
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}
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return $this->lang[$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 string|array $file 语言文件
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* @param string $range 语言作用域
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* @return array
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*/
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public function load($file, $range = '')
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{
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$range = $range ?: $this->range;
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if (!isset($this->lang[$range])) {
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$this->lang[$range] = [];
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}
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// 批量定义
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if (is_string($file)) {
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$file = [$file];
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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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$this->app->log('[ LANG ] ' . $_file);
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$_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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$this->lang[$range] = $lang + $this->lang[$range];
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}
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return $this->lang[$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 $range 语言作用域
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* @return bool
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*/
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public function has($name, $range = '')
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{
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$range = $range ?: $this->range;
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return isset($this->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 $range 语言作用域
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* @return mixed
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*/
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public function get($name = null, $vars = [], $range = '')
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{
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$range = $range ?: $this->range;
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// 空参数返回所有定义
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if (is_null($name)) {
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return $this->lang[$range];
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}
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$key = strtolower($name);
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$value = isset($this->lang[$range][$key]) ? $this->lang[$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 $value;
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}
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/**
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* 自动侦测设置获取语言选择
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* @access public
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* @return string
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*/
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public function detect()
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{
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// 自动侦测设置获取语言选择
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$langSet = '';
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if (isset($_GET[$this->langDetectVar])) {
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// url中设置了语言变量
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$langSet = strtolower($_GET[$this->langDetectVar]);
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} elseif (isset($_COOKIE[$this->langCookieVar])) {
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// Cookie中设置了语言变量
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$langSet = strtolower($_COOKIE[$this->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($matches[1]);
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if (isset($this->acceptLanguage[$langSet])) {
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$langSet = $this->acceptLanguage[$langSet];
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}
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}
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if (empty($this->allowLangList) || in_array($langSet, $this->allowLangList)) {
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// 合法的语言
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$this->range = $langSet ?: $this->range;
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}
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return $this->range;
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}
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/**
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* 设置当前语言到Cookie
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* @access public
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* @param string $lang 语言
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* @return void
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*/
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public function saveToCookie($lang = null)
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{
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$range = $lang ?: $this->range;
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$_COOKIE[$this->langCookieVar] = $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 $var 变量名称
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* @return void
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*/
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public function setLangDetectVar($var)
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{
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$this->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 $var 变量名称
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* @return void
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*/
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public function setLangCookieVar($var)
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{
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$this->langCookieVar = $var;
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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 function setAllowLangList(array $list)
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{
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$this->allowLangList = $list;
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}
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/**
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* 设置转义的语言列表
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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 function setAcceptLanguage(array $list)
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{
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$this->acceptLanguage = array_merge($this->acceptLanguage, $list);
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}
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}
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