Getting a Functions argumentc/variable names

[johanna]

Hi,

 

I am looking to get the default arguments in a user function.

 

I know that you can use get_defined_functions() to get all the functions, and I know that you can also get the arguments within the function, with func_get_args().

 

But is it possible to get the argument variable names (or keys) before calling the function?

 

Here is what I need. Say I have a function with args:

 

function foo($something, $another=''){

return $something.$another;

}

 

Is there a way to get the variable/arg names, "$something" and "$another" from the functions?

 

For you c programmers, I am looking for something like inspect.getargspec() but that is for PHP

 

 

[per1os]

I do not think it is possible, but what would be the point of the function to just return the arguments names?

 

I mean if that function is what you want this would work...

 

function foo($something, $another=''){
return '$something' . '$another';
}

 

But I think you want it for existing functions, I really do not think it is possible. If it is you will find it somewhere in here: http://us.php.net/manual/en/ref.funchand.php

[johanna]

Thanks for the reply.

 

I am pretty familiar with all the those functions ... and it's not really what I am looking for, but rather like inspect.getargspec() in C.

 

We have a program that was developed by a programmer who ioncubed portions of it before abandoning the project, without our knowledge or consent. We are perusing court action, but it's a long process.

 

In the meantime we need to build some additional functionality quite urgently.

 

Using get_defined_functions() we are able to get the function names, we can do the same for classes.

 

But we can't figure out the arguments.

 

If anyone knows anyway to do this, I would greatly appreciate any pointers.

[taith]

sure its possible...

 

http://ca.php.net/manual/en/function.func-get-args.php

[per1os]

sure its possible...

 

http://ca.php.net/manual/en/function.func-get-args.php

 

No, he doesn't want to just get random argument values. He wants to get the argument names of each function. So in this function

 

function foo($passed, $in) {
         return "I was passed in";
}

 

It would return him $passed and $in.

 

Now I do not think there is any current functionality in php. But if you know C you may be able to create your own extension dll for just this, I would check out the core hacking section. I think you are at a loss to create your own functionality.

[johanna]

Yes, frost110, you understood correctly. I guess I'll have to attempt it in C.