While searching for a simple CMS in PHP, I encountered a CMS at http://get-simple.info/ whose slogan is "The Simplest Content Management System. Ever.". I just downloaded it and tested it on my local system. I realized that it is really the simplest CMS of the world. I quickly configured the website of a school using this CMS which can be seen at https://nunuvatipublicschool.org/. Then I also installed this CMS on this website. The admin section of this CMS is very much simple and intuitive. I have seen its code and it is following the coding style of WordPress but it has made the WordPress much more simpler. I am planning to extend features of this CMS by developing plugins and themes for it. I love the possibility of customization of this CMS and have started to offer a introductory website to my hosting customers. If you also want to set up a website with all basic functionalities in 5 minutes then you must try it.