How to see php bytecode file

Question

I am doing it for learning purpose. I have gone through many articles that php first convert its source code to bytecode, but i am not able to find a way to see the bytecode format, that how it looks like?

In java and C there are many ways to see bytecode file. but unable to find any article in php to see converted bytecode.

Answer 1

To turn PHP code into a list of opcodes, you can use vld, the "Vulcan Logic Dumper" (available on GitHub and PECL).

The PHP documentation also maintains a list of opcodes.

Also available is 3v4l.org, which allows you to input PHP code and view part of the vld dump on its results page.