2 · Intermediate

Now the pages start sending information to each other, and remembering it.

1.Forms
Getting information from the user and sending it to a PHP page. Also file uploads and downloads.
 2.Databases
Connecting to MySQL, reading, inserting, and doing it safely. The biggest section — take your time.
 3.Sessions
How the server remembers a user from one page to the next.
 4.Redirecting
Sending a user to a different page automatically.