PHP implements multi-language internationalization in WeChat mini programs

With the popularity of smartphones and the advancement of Internet technology, mobile applications have become an indispensable part of people's daily lives. Among them, "WeChat Mini Program", as a function in the WeChat ecosystem, has become a popular mobile application platform. On this platform, users can use numerous feature-rich applets, and developers can also use it to publish their own applications. Among them, when developing WeChat mini programs, achieving multi-language internationalization has become a very important issue. In this article, we will introduce how to use PHP to implement multi-language internationalization of WeChat mini programs.

Multi-language internationalization means that the application can be translated into different languages ​​to adapt to users in different language countries. When developing WeChat applet, we need to dynamically modify the displayed text content when the user switches languages. To achieve multi-language internationalization, we need to provide the program with text content in multiple different languages ​​and select the corresponding text according to the language selected by the user.

In the WeChat applet, we can use the wx.i18n interface provided by WeChat to achieve multi-language internationalization. However, this interface only supports the management of localized strings and does not directly support obtaining multi-language data from the server. Therefore, when implementing multi-language internationalization, we need to combine it with server-side PHP code.

Below is a simple PHP script that can get multi-language data from the server side and convert it into JSON format:

In the above code, we first get the user selected language, and then set the corresponding text content according to the selected language and save it in the $data array. Finally, we convert the data into JSON format and output it to the browser for consumption by the front-end JavaScript code.

In the front-end JavaScript code, we can use the wx.request interface provided by WeChat to obtain multilingual data from the server, and dynamically update the displayed text content when the user switches languages. Here is a simple JavaScript code example:

//初始化数据
var data = {
    greet: '',
    msg: ''
};

//发起请求，获取多语言数据
wx.request({
    url: 'http://example.com/i18n.php?lang=' + getApp().globalData.language,
    success: function(res) {
        data = res.data; //保存数据到全局变量中
    }
});

//在文本中显示多语言数据
Page({
    data: data,
    onLoad: function() {
        //动态更新文本内容
        this.setData({
            greet: data.greet,
            msg: data.msg
        });
    }
});

In the above code, we first save the multi-language data in a global variable. Then, when the page loads, we use the wx.setData interface to dynamically update the data into the text.

In summary, it is very simple to use PHP to implement multi-language internationalization of WeChat mini programs. We only need to write a simple PHP script on the server side to generate multilingual data, and then use wx.request in the front-end JavaScript code to get the data from the server and dynamically update the displayed content in the text.

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