For those of you who are familiar with LAMP architecture might at one point want to try a different web server besides the Apache web server. LEMP architecture is actually LAMP but instead of using Apache web server, uses nginx. Some argues that the performance is actually better using nginx. Furthermore, with PHP 7, it can dramatically give you better performance on your web applications.
Source Image: www.infragistics.com
Of course a lot of you would just like to use command line stuff...where you would just write code via emacs or vi and start packing your hello world code or more like the one below...
<?php echo "Hello"; ?>
But sometimes, a tool can make your life easier.