Befunge/index.php

Befunge/index.php is a language designed by User:ehird in 2010. It is identical to Befunge-93, but with one additional instruction:

• X — Executes the stack as a brainfuck program, where the top of stack is the last character in the program and the bottom of stack the first, encoded in ASCII. When the brainfuck sub-program terminates, so does the program.

Examples

Brainfuck interpreter

A null character separates program and input.

>~_X