PHP Server-Side Scripting language for Website Development

PHP (Server-Side Scripting language)

PHP language stands for “PHP: Hypertext Pre-processor” The most widely-used, open-source, and script language. All PHP scripts are executed on the server.

It can be run on different platforms like:

Windows
Linux
Unix
Mac OS X etc.

It is used for almost every server like

Apache

It also supports various types of databases.

PHP Syntax

PHP script starts with

<?php

Code written here…

The extension for PHP files is “.php”. Normally a PHP FILE contains HTML tags, and some PHP scripting code. Below, there is an example of a code, with a PHP script that uses a built-in PHP function “echo” for print out the text “Script Language” on a web page:

Example

<!DOCTYPE html>
<html>
<body>
<h2>PHP Page</h2>
<?php
echo "Script Language";
?>
</body>
</html>

<!DOCTYPE html>

<html>

<body>

<?php

echo "Script Language";

</body>

</html>

Output

PHP Page

Script Language

Code	Comments
<html>	Starting with HTML tags
<h2></h2>	Head (heading 2)opening and closing of head
<?php	Starting php
echo	Built in function to print the text
?>	Closing of php

Pre-requisites to PHP

Before you start your learning with PHP, you must have a little basic understanding of HTML, CSS, and JavaScript.

Best PHP Frameworks For Web Development

1. Laravel
2. Phalcon
3. Fat-Free Framework
4. CodeIgniter
5. Laminas Project
6. CakePHP
7. FuelPHP
8. Slim
9. PHPixie
10. Symfony
11. Yii

Object-oriented PHP Exercises with solution

Factorial of a number with object-oriented PHP