Recently I read a book that often mentions client code. how can I understand the meaning of this term?

Recently I read a book that often mentions client code. how can I understand the meaning of this term? recently I read a book that is very good and often mentions the term "client code. It seems that the first person is writing server code. My understanding is that, for example, the core code of the entire framework is the server code, and the various controllers accessed by users during direct browsing are the client code. I don't know if this understanding is correct. Recently I read a book that often mentions client code. how can I understand the meaning of this term?
I have read a book recently and it is a good book. I often mention the term "entire client code.
It seems that the first person is writing server code.
My understanding is that, for example, the core code of the entire framework is the server code, and the various controllers accessed by users during direct browsing are the client code. I don't know if this understanding is correct.

Share: More

------ Solution --------------------
Reference:

Quote: reference:

For example, a website is called a server, and a browser is a client.

Right is the website. client code, but my client accesses an index. php, and index. php accesses different controllers according to parameters. as if I read this book, it means writing interfaces? For others to call?

Index. php is a file placed on the server. after the server processes the explanation, it returns it to the browser. viewing the browser source file is to view the client code (HTML ).
For example, index. php write
Echo 'hello world ';
?>
The browser displays hello world, which is the client code.