What can PHP do?

What is a cookie?

Simply put,a cookie is a piece of information that the server temporarily stores on your computer so that the server can use it to identify your computer cookies, and many websites that provide personalized services use cookies to identify users, To facilitate the delivery of user-tailored content , such as the Web interface of the free e-mail site, all use cookies. The information contained in the cookie is limited and the cookie is safe. It is not possible to obtain your e-mail address or other personal information via cookies, and there is no way to access your computer through cookies. But if you really don't like Web servers littering cookies (cookies) into your home, of course you can let the browser refuse to store cookies on your computer. As long as you select "Security" under "intertnet options" under IE's "Tools" menu, press the custom level, set the cookie section to off, press OK, close the browser, and then restart the browser. When you turn off cookies, many websites ' personalization services are probably no longer available.

What can PHP do?