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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) 2006~2021 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 <[email protected]> |
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// +---------------------------------------------------------------------- |
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declare (strict_types = 1); |
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namespace think; |
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/** |
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* 多语言管理类 |
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* @package think |
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*/ |
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class Lang |
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{ |
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protected $app; |
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/** |
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* 配置参数 |
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* @var array |
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*/ |
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protected $config = [ |
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// 默认语言 |
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'default_lang' => 'zh-cn', |
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// 允许的语言列表 |
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'allow_lang_list' => [], |
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// 是否使用Cookie记录 |
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'use_cookie' => true, |
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// 扩展语言包 |
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'extend_list' => [], |
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// 多语言cookie变量 |
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'cookie_var' => 'think_lang', |
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// 多语言header变量 |
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'header_var' => 'think-lang', |
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// 多语言自动侦测变量名 |
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'detect_var' => 'lang', |
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// Accept-Language转义为对应语言包名称 |
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'accept_language' => [ |
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'zh-hans-cn' => 'zh-cn', |
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], |
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// 是否支持语言分组 |
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'allow_group' => false, |
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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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* 构造方法 |
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* @access public |
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* @param array $config |
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*/ |
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public function __construct(App $app, array $config = []) |
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{ |
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$this->config = array_merge($this->config, array_change_key_case($config)); |
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$this->range = $this->config['default_lang']; |
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$this->app = $app; |
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} |
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public static function __make(App $app, Config $config) |
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{ |
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return new static($app, $config->get('lang')); |
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} |
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/** |
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* 获取当前语言配置 |
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* @access public |
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* @return array |
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*/ |
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public function getConfig(): array |
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{ |
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return $this->config; |
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} |
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/** |
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* 设置当前语言 |
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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 setLangSet(string $lang): void |
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{ |
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$this->range = $lang; |
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} |
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/** |
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* 获取当前语言 |
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* @access public |
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* @return string |
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*/ |
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public function getLangSet(): string |
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{ |
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return $this->range; |
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} |
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/** |
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* 获取默认语言 |
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* @access public |
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* @return string |
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*/ |
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public function defaultLangSet() |
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{ |
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return $this->config['default_lang']; |
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} |
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/** |
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* 切换语言 |
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* @access public |
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* @param string $langset 语言 |
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* @return void |
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*/ |
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public function switchLangSet(string $langset) |
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{ |
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if (empty($langset)) { |
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return; |
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} |
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// 加载系统语言包 |
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$this->load([ |
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$this->app->getThinkPath() . 'lang' . DIRECTORY_SEPARATOR . $langset . '.php', |
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]); |
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// 加载系统语言包 |
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$files = glob($this->app->getAppPath() . 'lang' . DIRECTORY_SEPARATOR . $langset . '.*'); |
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$this->load($files); |
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// 加载扩展(自定义)语言包 |
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$list = $this->app->config->get('lang.extend_list', []); |
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if (isset($list[$langset])) { |
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$this->load($list[$langset]); |
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} |
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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, $range = ''): array |
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{ |
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$range = $range ?: $this->range; |
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if (!isset($this->lang[$range])) { |
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$this->lang[$range] = []; |
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} |
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$lang = []; |
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foreach ((array) $file as $name) { |
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if (is_file($name)) { |
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$result = $this->parse($name); |
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$lang = array_change_key_case($result) + $lang; |
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} |
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} |
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if (!empty($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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* 解析语言文件 |
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* @access protected |
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* @param string $file 语言文件名 |
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* @return array |
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*/ |
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protected function parse(string $file): array |
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{ |
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$type = pathinfo($file, PATHINFO_EXTENSION); |
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switch ($type) { |
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case 'php': |
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$result = include $file; |
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break; |
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case 'yml': |
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case 'yaml': |
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if (function_exists('yaml_parse_file')) { |
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$result = yaml_parse_file($file); |
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} |
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break; |
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case 'json': |
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$data = file_get_contents($file); |
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if (false !== $data) { |
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$data = json_decode($data, true); |
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if (json_last_error() === JSON_ERROR_NONE) { |
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$result = $data; |
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} |
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} |
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break; |
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} |
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return isset($result) && is_array($result) ? $result : []; |
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} |
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/** |
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* 判断是否存在语言定义(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(string $name, string $range = ''): bool |
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{ |
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$range = $range ?: $this->range; |
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if ($this->config['allow_group'] && strpos($name, '.')) { |
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[$name1, $name2] = explode('.', $name, 2); |
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return isset($this->lang[$range][strtolower($name1)][$name2]); |
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} |
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return isset($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(string $name = null, array $vars = [], string $range = '') |
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{ |
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$range = $range ?: $this->range; |
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if (!isset($this->lang[$range])) { |
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$this->switchLangSet($range); |
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} |
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// 空参数返回所有定义 |
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if (is_null($name)) { |
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return $this->lang[$range] ?? []; |
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} |
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if ($this->config['allow_group'] && strpos($name, '.')) { |
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[$name1, $name2] = explode('.', $name, 2); |
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$value = $this->lang[$range][strtolower($name1)][$name2] ?? $name; |
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} else { |
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$value = $this->lang[$range][strtolower($name)] ?? $name; |
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} |
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// 变量解析 |
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if (!empty($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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* @deprecated |
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* @access public |
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* @param Request $request |
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* @return string |
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*/ |
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public function detect(Request $request): string |
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{ |
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// 自动侦测设置获取语言选择 |
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$langSet = ''; |
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if ($request->get($this->config['detect_var'])) { |
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// url中设置了语言变量 |
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$langSet = strtolower($request->get($this->config['detect_var'])); |
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} elseif ($request->header($this->config['header_var'])) { |
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// Header中设置了语言变量 |
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$langSet = strtolower($request->header($this->config['header_var'])); |
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} elseif ($request->cookie($this->config['cookie_var'])) { |
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// Cookie中设置了语言变量 |
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$langSet = strtolower($request->cookie($this->config['cookie_var'])); |
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} elseif ($request->server('HTTP_ACCEPT_LANGUAGE')) { |
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// 自动侦测浏览器语言 |
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$match = preg_match('/^([a-z\d\-]+)/i', $request->server('HTTP_ACCEPT_LANGUAGE'), $matches); |
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if ($match) { |
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$langSet = strtolower($matches[1]); |
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if (isset($this->config['accept_language'][$langSet])) { |
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$langSet = $this->config['accept_language'][$langSet]; |
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} |
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} |
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} |
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if (empty($this->config['allow_lang_list']) || in_array($langSet, $this->config['allow_lang_list'])) { |
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// 合法的语言 |
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$this->range = $langSet; |
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} |
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return $this->range; |
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} |
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/** |
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* 保存当前语言到Cookie |
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* @deprecated |
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* @access public |
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* @param Cookie $cookie Cookie对象 |
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* @return void |
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*/ |
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public function saveToCookie(Cookie $cookie) |
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{ |
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if ($this->config['use_cookie']) { |
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$cookie->set($this->config['cookie_var'], $this->range); |
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} |
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} |
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} |
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