Learn how to troubleshoot Apache 2 when it's not executing PHP files with this easy-to-follow, step-by-step tutorial.

It will launch when you double-click an HTML file. However, you may prefer to run an HTML file in a specific browser -- for example, Firefox may contain debugging or design tools that you use ...

Here's a quick tutorial on how to setup Nginx with PHP support. The key? The installation of fastCGI, aka PHP-FPM, so Nginx can serve PHP files to clients.