How to implement multi-language in php

With the further advancement of globalization, many websites have begun to provide services to global users. Among them, the issue of language is particularly important. After all, if users open your website and find that they can’t understand the content, they are likely to give up using your website. To solve this problem, we need to use multi-language technology. This article will introduce how to implement multi-language in PHP.

1. The concept of multi-language

Multi-language refers to a technology that uses different languages ​​to present content on the same website. Through multilingual technology, users can browse website content according to the language they use, which greatly improves the usability and user stickiness of the website.

2. How to implement multi-language in PHP

php is an extremely flexible language that can easily implement multi-language technology. The specific implementation method can be divided into the following steps:

1. Determine the type of language to be used

The first thing to do is to determine which languages ​​to use. Generally speaking, languages ​​such as English, Chinese, Japanese, Spanish, French, and German are more commonly used. When designing a website, you should consider the audience of your website and choose the appropriate language.

2. Prepare language files

Prepare the language files to be used. Each language can correspond to a file, and the file naming method is generally "lang_language code.php". For example, if you want to support English and Chinese, you can prepare two files, one is "lang_en.php" and the other is "lang_zh.php".

3. Writing language files

Open each language file and start writing language strings. Language string refers to every text that needs to be displayed on the website, including titles, buttons, prompts, etc. Define each string as a variable followed by the actual text content. For example:

$lang['welcome'] = 'Welcome to our website!';
$lang['login'] = 'Login';
$lang['username'] = 'Username';
$lang['password'] = 'Password';

In this way, each language file will contain a series of such variables.

4. Read language files

In the php code, read the required language files. This step is very important, because only by reading the corresponding language file can the corresponding language content be displayed correctly on the page. For example:

$lang_file = 'lang_en.php';
include($lang_file);

This code will read the file named "lang_en.php" and then All variables in it are loaded into the current php file.

5. Output language string

The last step is to output the corresponding language string on the website.

In the php code, you can output a certain language string through the following statement:

echo $lang['welcome'];

In this way, the variable name can be output The language string for "welcome". In this way, users can enjoy the advantages of multiple languages ​​when visiting the website.

3. Summary

As a flexible and changeable language, PHP is very suitable for implementing multi-language technology. Through the four steps of preparing language files, writing language strings, loading language files, and outputting language strings, you can easily implement a multilingual website. This not only helps improve the usability of the site, but also attracts more users to use it.

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