Introduction to PHP

  PHP is a server site scripting language.

  PHP stands for Hypertext Preprocessor.

  It is open source scripting language.

  PHP was invented in 1994 by Rasmus Lerdorf.

 Uses:

·         It is used to create dynamic and interactive website

              ·         Php can retrieve data from database

              ·         Php can use session and cookies

·         It is used for send and receive e-mails.

·         Using php you can create login page for your user.

·    Using php you can add, delete, modify elements within your database

·         It can encrypt data.

·    PHP performs system functions, i.e. from files on a system it can create, open, read, write, and close them.

·       It can handle forms, i.e. gather data from files, save data to a file

Advantages

·         It is open source scripting language.

·         It is free to download.

·         It is executed on the server.

·         There is no need for compiler to execute php code because It is an interpreted   language