PHP, which is a recursive abbreviation for PHP: Hypertext Preprocessor, is among the most widely used open-source server-side scripting languages out there. Any website or application based on PHP will run on a given server provided that a PHP module is enabled, which renders the language absolutely universal and it is by no means a surprise that there are a couple of million servers that support it and hundreds of millions of PHP-powered sites hosted on them. PHP is preferred over HTML due to the fact that it permits you to develop a responsive website with a myriad of features. A PHP-based community web portal, for example, will display unique content to each user regardless of the fact that the page URL won’t change. On the other hand, HTML-based sites are static and the content on the pages can be updated only manually. Like any other piece of software, PHP has different versions and the version that was used whilst creating a specific website must be set up on the web server in order for the site to work correctly.