How to switch between Simplified and Traditional Chinese and English on the web page?

How to switch between Simplified and Traditional Chinese and English on the webpage?

Reference: Simplified Chinese to Traditional Chinese Tool or Traditional Chinese to Simplified Chinese Tool: http://www.php.cn/xiazai/tool/11

Language pack.
Each fixed text is a unit.
Each language pack contains the translations of all units corresponding to that language, and then the language pack is read and rendered according to the corresponding language.

The above is how to switch between Simplified and Traditional Chinese and English on the web page? Content, for more related content, please pay attention to the PHP Chinese website (www.php.cn)!