The Popularity of PHP
PHP is the world’s most popular server-side scripting language. Although not as robust a language as either Python or Ruby, PHP has an enormous and vibrant user base. PHP is supported almost universally on all hosting environments, which makes it a safe and convenient choice.
Wordpress is the world’s most popular content management platform. It has a vibrant community dedicated to providing plugins and themes, many of which are free. One of the primary benefits of wordpress is the ability for anyone to easily add or update content.
PyroCMS is a content management platform whose easily extended core makes building additional functionality a breeze. While not as popular as Wordpress, PyroCMS is quickly becoming a popular solution for creating and maintaining a customized web application.
PHP Web Frameworks
Laravel is an open-source PHP framework whose goal is to provide an expressive and elegant platform from which one may create a fully customized, robust application. Laravel is a great choice for creating a highly-portable web application with minimum dependencies.