PHP.docx - PHP is a server scripting language, and a...

PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages.
PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.
PHP 7 is the latest stable release.
< !DOCTYPE html >
< html >
< body >
<?php
echo "My first PHP script!" ;
?>
< /body >
< /html >
O/P: My first PHP script!
PHP Introduction
PHP code is executed on the server.
Before you continue you should have a basic understanding of the following:

HTML

CSS

JavaScript
What is PHP?
What is a PHP File?
What Can PHP Do?
1


PHP can encrypt data
With PHP you are not limited to output HTML. You can output images, PDF files, and even Flash
movies. You can also output any text, such as XHTML and XML.
Why PHP?

PHP runs on various platforms (Windows, Linux, Unix, Mac OS X, etc.)

PHP is compatible with almost all servers used today (Apache, IIS, etc.)

PHP supports a wide range of databases

PHP is free. Download it from the official PHP resource:

PHP is easy to learn and runs efficiently on the server side
What's new in PHP 7

PHP 7 is much faster than the previous popular stable release (PHP 5.6)

PHP 7 has improved Error Handling

PHP 7 supports stricter Type Declarations for function arguments

PHP 7 supports new operators (like the spaceship operator: <=> )
PHP Installation
What Do I Need?
To start using PHP, you can:
 Find a web host with PHP and MySQL support
 Install a web server on your own PC, and then install PHP and MySQL
Use a Web Host With PHP Support
 If your server has activated support for PHP you do not need to do anything.
 Just create some .php files, place them in your web directory, and the server will automatically
parse them for you.
 You do not need to compile anything or install any extra tools.
 Because PHP is free, most web hosts offer PHP support.
PHP Syntax
A PHP script is executed on the server, and the plain HTML result is sent back to the browser.