thinkphp-wechat/thinkphp/library/think/Lang.php

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2021-12-24 16:40:05 +08:00
<?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
{
/**
* 多语言信息
* @var array
*/
private $lang = [];
/**
* 当前语言
* @var string
*/
private $range = 'zh-cn';
/**
* 多语言自动侦测变量名
* @var string
*/
protected $langDetectVar = 'lang';
/**
* 多语言cookie变量
* @var string
*/
protected $langCookieVar = 'think_var';
/**
* 允许的多语言列表
* @var array
*/
protected $allowLangList = [];
/**
* Accept-Language转义为对应语言包名称 系统默认配置
* @var string
*/
protected $acceptLanguage = [
'zh-hans-cn' => 'zh-cn',
];
/**
* 应用对象
* @var App
*/
protected $app;
public function __construct(App $app)
{
$this->app = $app;
}
// 设定当前的语言
public function range($range = '')
{
if ('' == $range) {
return $this->range;
} else {
$this->range = $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 $range 语言作用域
* @return mixed
*/
public function set($name, $value = null, $range = '')
{
$range = $range ?: $this->range;
// 批量定义
if (!isset($this->lang[$range])) {
$this->lang[$range] = [];
}
if (is_array($name)) {
return $this->lang[$range] = array_change_key_case($name) + $this->lang[$range];
}
return $this->lang[$range][strtolower($name)] = $value;
}
/**
* 加载语言定义(不区分大小写)
* @access public
* @param string|array $file 语言文件
* @param string $range 语言作用域
* @return array
*/
public function load($file, $range = '')
{
$range = $range ?: $this->range;
if (!isset($this->lang[$range])) {
$this->lang[$range] = [];
}
// 批量定义
if (is_string($file)) {
$file = [$file];
}
$lang = [];
foreach ($file as $_file) {
if (is_file($_file)) {
// 记录加载信息
$this->app->log('[ LANG ] ' . $_file);
$_lang = include $_file;
if (is_array($_lang)) {
$lang = array_change_key_case($_lang) + $lang;
}
}
}
if (!empty($lang)) {
$this->lang[$range] = $lang + $this->lang[$range];
}
return $this->lang[$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 $range 语言作用域
* @return bool
*/
public function has($name, $range = '')
{
$range = $range ?: $this->range;
return isset($this->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 $range 语言作用域
* @return mixed
*/
public function get($name = null, $vars = [], $range = '')
{
$range = $range ?: $this->range;
// 空参数返回所有定义
if (is_null($name)) {
return $this->lang[$range];
}
$key = strtolower($name);
$value = isset($this->lang[$range][$key]) ? $this->lang[$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 function detect()
{
// 自动侦测设置获取语言选择
$langSet = '';
if (isset($_GET[$this->langDetectVar])) {
// url中设置了语言变量
$langSet = strtolower($_GET[$this->langDetectVar]);
} elseif (isset($_COOKIE[$this->langCookieVar])) {
// Cookie中设置了语言变量
$langSet = strtolower($_COOKIE[$this->langCookieVar]);
} elseif (isset($_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]);
if (isset($this->acceptLanguage[$langSet])) {
$langSet = $this->acceptLanguage[$langSet];
}
}
if (empty($this->allowLangList) || in_array($langSet, $this->allowLangList)) {
// 合法的语言
$this->range = $langSet ?: $this->range;
}
return $this->range;
}
/**
* 设置当前语言到Cookie
* @access public
* @param string $lang 语言
* @return void
*/
public function saveToCookie($lang = null)
{
$range = $lang ?: $this->range;
$_COOKIE[$this->langCookieVar] = $range;
}
/**
* 设置语言自动侦测的变量
* @access public
* @param string $var 变量名称
* @return void
*/
public function setLangDetectVar($var)
{
$this->langDetectVar = $var;
}
/**
* 设置语言的cookie保存变量
* @access public
* @param string $var 变量名称
* @return void
*/
public function setLangCookieVar($var)
{
$this->langCookieVar = $var;
}
/**
* 设置允许的语言列表
* @access public
* @param array $list 语言列表
* @return void
*/
public function setAllowLangList(array $list)
{
$this->allowLangList = $list;
}
/**
* 设置转义的语言列表
* @access public
* @param array $list 语言列表
* @return void
*/
public function setAcceptLanguage(array $list)
{
$this->acceptLanguage = array_merge($this->acceptLanguage, $list);
}
}