PHP Introduction

  • PHP is a server-side scripting language which means that PHP code is executed on a Web Server and its result is sent back to the Web Browser in the form of HTML..
  •  It is an interpreted language and does not require a compiler.
  • PHP Files contain the content in the form of HTML, CSS, Javascript and PHP and is saved with .php extension.

The key functionalities of PHP are mentioned below: 

  • PHP helps in creating dynamic web pages and applications.
  • PHP helps in performing file handling which includes creating, opening, reading, writing, deleting and closing files on the server. 
  • PHP helps in form processing.
  • Helps in inserting, retrieving, updating or deleting data in a Database.
  • Cookies and sessions are created and handled in PHP.
  • Helps in encrypting and decrypting the data.
  • Helps in sending emails.