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How to get a reference to the currently executing function with PHP?

Possible Duplicate:
In PHP, how do you get reference to calling file?

In PHP, how do you get a reference to the currently executing function?

A:

You can’t get what you’re asking for. Functions are a core feature of the language, and they won’t go away, so you can’t have a reference to them.
You could do it with some weird hack, but I would never recommend it. One of the reasons why PHP is so awesome is because you’re not allowed to do these kinds of crazy tricks: it makes your code less flexible, error-prone, and more complicated to understand. You can get the file name from $_SERVER[‘_REQUEST_METHOD’], but you need to be sure that this will actually be set – e.g. it’s not always. It can be set in certain parts of your code, but you can’t rely on it.
The correct way to do this would be to create a callback function, which you can add to the object that needs it, instead of passing it in the constructor which means you have less control over when it gets executed and what’s going on.

Q:

Python’s multiprocessing.Process can’t access module object

The docs specifically say:

The subprocess module is not suitable from a security POV for controlling untrusted users, due to the potential for arbitrary code execution.

It appears that the only safe way to get code into a subprocess is to use multiprocessing, with the exception of subprocess.Popen instances, which don’t run in the subprocess namespace. It also says:

A common use of multiprocessing is to move blocking operations outside of the main process, so that they don’t tie up all other resources in the main Python interpreter.

I am confused by that last sentence. I wrote a small example in Python 3.5 to demonstrate what I’m

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