thinkphp implements switching between Chinese and English

With the acceleration of globalization, more and more websites need to provide Chinese and English switching functions to adapt to the needs of different users. In website development, how to use a practical framework to implement this switching function has become the focus of countless developers' research. This article will use the thinkphp framework to introduce how to use it to switch between Chinese and English.

1. Language package settings

We know that language package management in thinkphp is managed in the form of key-value pairs, where the key name is a constant in the language, and the key value is the string corresponding to the constant. Therefore, we first prepare two language packs: one is the Chinese language pack and the other is the English language pack. What I have set up here are two language packs, zh-cn and en-us, zh-cn is the Chinese language pack, and en-us is the English language pack. Their root directories are exactly the same as the application directories, as shown below:

├─application
│  ├─en-us
│  │  └─lang.php
│  └─zh-cn
│      └─lang.php
└─...

Among them, the format of the lang.php file is as follows:

<?php
return [
    'key' => 'value',
    'hello' => '你好',
    'world' => '世界',
];

Here I added 'hello' => 'Hello' and 'world' => 'World' are two constants, corresponding to the content in the Chinese language pack and English language pack respectively. In this way, we can then switch and use these two language packages together through the thinkphp framework.

2. Chinese and English switching operations

We can encapsulate the Chinese and English switching operations in a controller to facilitate switching between different views. Here I created a Language controller and added the switch_lang operation method. The code is as follows:

namespace appindexcontroller;

use thinkController;

class Language extends Controller
{
    public function switch_lang($lang = 'zh-cn')
    {
        if ($lang == 'en-us') {
            cookie('think_var', 'en-us', 3600);
        } else {
            cookie('think_var', 'zh-cn', 3600);
        }
        return $this->redirect($_SERVER['HTTP_REFERER']);
    }
}

This method will first get the language switching parameter $lang. If it is 'en-us', it will be stored in the cookie. Set think_var to 'en-us', which means switching to the English language pack; otherwise, set think_var to 'zh-cn', which means switching to the Chinese language pack. Then use the redirect method to redirect to the previously visited page so that the user can view the language switching effect in real time.

3. View language switching

With the language package and language switching controller, we can use the lang function that comes with thinkphp to switch languages ​​in the view file. The lang function will obtain the corresponding language pack content based on the value of think_var. For example, we add the following code to the view file:

<button><a href="{:url('language/switch_lang', ['lang' => cookie('think_var') == 'zh-cn' ? 'en-us' : 'zh-cn'])}">{$lang.button}</a></button>

In this code, we use the url function to generate a language switching link, and convert the think_var in the cookie into a Chinese and English string to implement Chinese and English Display of buttons. At the same time, we also obtained the button constants in the lang language package, which are used to display text in Chinese and English languages ​​on the button. In this way, after the user clicks the button, the language switching logic has been processed in the controller. The view file will automatically obtain the corresponding language pack content based on the value of think_var in the cookie and display it to the user.

Conclusion

This article mainly explains how to use the thinkphp framework to implement the Chinese and English switching function. Through language pack settings, language switching operations, and view language switching operations, we can easily implement basic Chinese and English switching functions. Of course, we can further improve this function, such as using a database to store language types in different countries, using a more flexible language pack management method, and so on. In any case, during the actual development process, we need to provide users with excellent language switching functions as much as possible to meet the needs of users with different language backgrounds.

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