PHP is a server-side scripting language that allows developers to make dynamic and interactive web pages. PHP scripts are executed on the server and plain HTML is sent to the browser. A PHP file uses the ".php" extension and contains HTML tags as well as PHP code wrapped in "<?php ?>" tags. Comments in PHP can use "//" or "/*" syntax and PHP is not case sensitive except for variable names.

1. Introduction to PHP
Presenter: Suraj Motee

2. What is PHP?
 PHP is a server scripting language, and a
powerful tool for making dynamic and
interactive Web pages.
 A PHP script is executed on the server,
and the plain HTML result is sent back to
the browser.

3. Syntax
 The default file extension for PHP files is
".php".
 A PHP script starts with <?php and ends
with ?>
 <?php
// PHP code goes here
?>

4. HTML & PHP
A PHP file normally contains HTML
tags, and some PHP scripting code.
Show example.

5. Comments
 /* */
 #
 //

6. Case sensitive
PHP is not case sensitive except
variables name.
Show examples.

7. Next: Variables