ThinkPHP
1.在Home(你取的项目名)的config.php中添加如下配置
复制代码 代码如下:
return array(
//'配置项'=>'配置值'
'LANG_SWITCH_ON' => true, //开启语言包功能
'LANG_AUTO_DETECT' => true, // 自动侦测语言
'DEFAULT_LANG' => 'zh-cn', // 默认语言
'LANG_LIST' => 'en-us,zh-cn,zh-tw', //必须写可允许的语言列表
'VAR_LANGUAGE' => 'l', // 默认语言切换变量
);
?>
2.Home的conf文件夹里添加一个php文件(tag.php),添加如下代码:
复制代码 代码如下:
return array(
// 添加下面一行定义即可
'app_begin' => array('CheckLang')
);
3.把Extend/Behavior/CheckLangBehavior.class.php 文件复制到Home/lib/Behavior/中(完整版的thinkphp包才有,没有的话请自行创建)
CheckLangBehavior.class.php代码:
复制代码 代码如下:
defined('THINK_PATH') or exit();
/**
* 语言检测 并自动加载语言包
* @category Extend
* @package Extend
* @subpackage Behavior
*/
class CheckLangBehavior extends Behavior {
// 行为参数定义(默认值) 可在项目配置中覆盖
protected $options = array(
'LANG_SWITCH_ON' => false, // 默认关闭语言包功能
'LANG_AUTO_DETECT' => true, // 自动侦测语言 开启多语言功能后有效
'LANG_LIST' => 'zh-cn', // 允许切换的语言列表 用逗号分隔
'VAR_LANGUAGE' => 'l', // 默认语言切换变量
);
// 行为扩展的执行入口必须是run
public function run(&$params){
// 开启静态缓存
$this->checkLanguage();
}
/**
* 语言检查
* 检查浏览器支持语言,并自动加载语言包
* @access private
* @return void
*/
private function checkLanguage() {
// 不开启语言包功能,仅仅加载框架语言文件直接返回
if (!C('LANG_SWITCH_ON')){
return;
}
$langSet = C('DEFAULT_LANG');
// 启用了语言包功能
// 根据是否启用自动侦测设置获取语言选择
if (C('LANG_AUTO_DETECT')){
if(isset($_GET[C('VAR_LANGUAGE')])){
$langSet = $_GET[C('VAR_LANGUAGE')];// url中设置了语言变量
cookie('think_language',$langSet,3600);
}elseif(cookie('think_language')){// 获取上次用户的选择
$langSet = cookie('think_language');
}elseif(isset($_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 = $matches[1];
cookie('think_language',$langSet,3600);
}
if(false === stripos(C('LANG_LIST'),$langSet)) { // 非法语言参数
$langSet = C('DEFAULT_LANG');
}
}
// 定义当前语言
define('LANG_SET',strtolower($langSet));
$group = '';
$path = (defined('GROUP_NAME') && C('APP_GROUP_MODE')==1) ? BASE_LIB_PATH.'Lang/'.LANG_SET.'/' : LANG_PATH.LANG_SET.'/';
// 读取项目公共语言包
if(is_file(LANG_PATH.LANG_SET.'/common.php'))
L(include LANG_PATH.LANG_SET.'/common.php');
// 读取分组公共语言包
if(defined('GROUP_NAME')){
if(C('APP_GROUP_MODE')==1){ // 独立分组
$file = $path.'common.php';
}else{ // 普通分组
$file = $path.GROUP_NAME.'.php';
$group = GROUP_NAME.C('TMPL_FILE_DEPR');
}
if(is_file($file))
L(include $file);
}
// 读取当前模块语言包
if (is_file($path.$group.strtolower(MODULE_NAME).'.php'))
L(include $path.$group.strtolower(MODULE_NAME).'.php');
}
}
4.在Home里的lang文件夹下创建3个语言文件夹。分别是zh-cn en-us zh-tw,
在这三个文件夹里各创建一个common.php文件,如图:
在common.php 里对应写上
复制代码 代码如下:
return array(
'welcome'=>'Welcome to use thinkphp',
);
?>
复制代码 代码如下:
return array(
'welcome'=>'欢迎使用ThinkPHP',
);
?>
复制代码 代码如下:
return array(
'welcome'=>'歡迎使用ThinkPHP',
);
?>
5.在tpl/Index/文件夹下创建视图 index.html
复制代码 代码如下:
大功告成!
后台语言要进行语言切换的话, 在每句话之前加L,如:
复制代码 代码如下:
public function index(){
print L('add_user_error'); //add_user_error只是语言变量,具体的语言要到语言包里写
$this->display();
}
这一点我觉得cakephp做的就比较好,不需要给每句话都给予一个变量。

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.

Fibers was introduced in PHP8.1, improving concurrent processing capabilities. 1) Fibers is a lightweight concurrency model similar to coroutines. 2) They allow developers to manually control the execution flow of tasks and are suitable for handling I/O-intensive tasks. 3) Using Fibers can write more efficient and responsive code.

The PHP community provides rich resources and support to help developers grow. 1) Resources include official documentation, tutorials, blogs and open source projects such as Laravel and Symfony. 2) Support can be obtained through StackOverflow, Reddit and Slack channels. 3) Development trends can be learned by following RFC. 4) Integration into the community can be achieved through active participation, contribution to code and learning sharing.

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

PHP is not dying, but constantly adapting and evolving. 1) PHP has undergone multiple version iterations since 1994 to adapt to new technology trends. 2) It is currently widely used in e-commerce, content management systems and other fields. 3) PHP8 introduces JIT compiler and other functions to improve performance and modernization. 4) Use OPcache and follow PSR-12 standards to optimize performance and code quality.

The future of PHP will be achieved by adapting to new technology trends and introducing innovative features: 1) Adapting to cloud computing, containerization and microservice architectures, supporting Docker and Kubernetes; 2) introducing JIT compilers and enumeration types to improve performance and data processing efficiency; 3) Continuously optimize performance and promote best practices.


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