JPHP is a new implementation for PHP which uses the Java VM. It supports many features of the PHP language (7.1+). How does it work? JPHP is a compiler like javac, it compiles php sources to JVM ...
It's cumbersome to create a single app. You had to design user interfaces, write code in multiple languages and frameworks, and understand how all of that code works together. Low-code/No-code ...