PHP is one of the most widely used coding languages. It’s rather popular as it is free software, which you can use to develop interactive websites such as social networking websites, Internet shops or e-learning sites instead of static HTML websites. A PHP module must be available on the server where a PHP-powered website is hosted so that its source code can be ‘decrypted’. As there are no license charges for this kind of module and the language offers infinite options for the applications that you set up, there’re hundreds of millions of PHP-powered websites. What’s more, there’re a lot of open-source PHP scripts, which you can use for your websites without the need to have any programming knowledge. Considering the fact that there are a number of PHP versions, you must verify if the exact same version that you used whilst developing your website is enabled on the web server too.