Why does rh-php71 not provide php >= 7?

Hello!

I have to use Red Hat for a Project, where we develop a web application. The web application depends on PHP 7, which is available in red hat by using software collections. We now want to create a rpm package for the application which has a requirement for php 7, The installation fails, because no package provides php in this version.

Why does the php SCL does not satisfy my requirement?

What is the way to solve this issue in Red Hat world? Do I have to create my own Software collection where i provide my application, a webserver and php7 and maintain it?