- Simply, Server side is code run on the server and client side is code run on the client’s machine, namely in the browser.
- If you’re teaching with PHP, it is easier to explain this distinction because Server side vs. Client side is structurally important in this programming language.
- PHP is a Server side language, however the Client side (the browser) makes requests a PHP file that the server run. Then the Client side is able to display the server-executed PHP.
- Client side code and languages (like Javascript) is executed on the Client side, in the browser.