The popular general-purpose scripting language that is especially suited to web development.
Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world, including the pages here in this website. PHP stands for Hypertext Preprocessor and the latest version is 8.1

Some of best known websites using PHP and WordPress the top of content management system runs using PHP.

Using PHP its easier to develop, clean, faster loading websites and cost effective right from the start and maintaining the site is easy with tonnes of developers available with the best skills in PHP.

Some of well know PHP frameworks that are used for creating applications includes,

Laravel, Codeigniter, Yii, Zend, FuelPHP, Phalcon.

Application Developed using PHP Includes,

Dynamic Website Templates, Online Communities, Image Output E-commerce Applications using OpenCart, Zen Cart, Magento, PrestaShop, and Ubercart, WordPress/Woocommerce, PHP Enterprise Software Web Content Management Systems, Customer Relationship Management System, Enterprise Resource Planning Systems and PHP for web database applications Mobile Apps

Migration to newer versions,

As technology develops software too keeps upgrading taking advantage of the newer systems. The older applications needs updated to newer ones that runs faster, more secure and with scalability options. Servers get updated regularly and so the need for the software to keep pace and gets updated. WIth latest versions of PHP, the older applications show errors and need debugging and updated to run in the new updated version of PHP. For example the older mysql extension is no longer supported in the new version and should be modified to use mysqli extension. Many functions and expressions need to be modified, and involves a revamp of the application.