It would be great if one could execute PHP on Android or iOS.
For this, we’d need a Zend Engine for mobile platforms. For the time being, Zend Engine (or HHVM) are available only on UNIX and Windows.
Alternatively we could have a JRE (Java Runtime Engine) for iOS and Android which would let us run at least Python as a first-class citizen through Jython, but probably not PHP yet since, last time I checked, the PHP edition on JRE was unreliable. I know Android has its own implementation of JRE but I doubt it lets us use any programming language other than Java (Android Edition) and Kotlin. Please correct me if I’m wrong.
Long story short, we need a universal engine that will run on all platforms (mobile/desktop) and support all programming languages via interfaces. That would be the programmer’s utopia.
If someone is ready to start this effort with a Patreon campaign, I’ll be the first to chip in.