What we can do with php???

Answer 1

Server side scripting.

Answer 2

It is used for create dynamic website.
To Interacting with web server (Apache etc)
To interacting with any back-end / database server e.g. MySQL
To interaction with the native file system of the OS
To implement the business logical layers (one or more)
It can Encrypt Data
Access Cookies variable and set cookies
Using php you can restrict user to access specific web page
PHP usually used to output HTML code to the browser
Used for connect web application with DataBase
It is used for send and receive E-Mails.
You can use PHP to find today's date, and then build a calendar for the month.
If you host banner advertisements on your website, you can use PHP to rotate them randomly.
Using php you can count your visitors on your website.
You can use PHP to create a special area of your website for members.
Using php you can create login page for your user.
Using php you can add, delete, modify elements within your database thru PHP. Access cookies variables and set cookies.
Using PHP, you can restrict users to access