PHP Introduction

Before learning php, you should have some knowledge in below topics:

• HTML
• CSS
• JavaScript

Define php?

• PHP is an acronym for “Hypertext Preprocessor”
• PHP is a widely-used, open source scripting language
• PHP scripts are executed on the server
• PHP costs nothing, it is free to download and use

Php File

• PHP files can contain text, HTML, CSS, JavaScript, and PHP code
• PHP code are executed on the server, and the result is returned to the browser as plain HTML
• PHP files have extension “.php”

Thats basic intro about PHP