Posted by Erwin Moller on 06/07/07 08:56

Jon Slaughter wrote:

> is there any way to simply add an attribute like feature to a
> function/method definition?
>
> say I create a function like
>
> function Test()
> {
>
> //....
> }
>
> but I want to assign a probability to it in the definition itself... maybe
> something like
>
> function Test()
> {
> static $probability = 0.234321;
> //....
> }
>
> Now is there any way that I can get the probability from the function? I'm
> using function pointers to call the functions in a random way. Essentially
> having a list of functions that have assigned probabilities and calling
> them based on that probability(I don't want to really seperate the
> probability from the definition.
>
>
> Ultimately it would be nice to extend the syntax to handle a new keyword
> like
>
> function Test():[Probability=0.123421]
> {
>
> }
>
> or something like that but I know thats not going to happen.
>
> Thanks,
> Jon

Hi Jon,

A simple idea but maybe it works in your situation:
1) Make your function a class.
2) Instantiate one for each function you need. (Function should now be named
method in OOP)
3) Add a simple method that stores name/value pairs you like to add to that
instance, simply storing them in an instancevariable hashed array.

class TestFunction{
var $addedValues;
function addValues($name,$value) {
$addedValues[$name]=$value;
}

function getValues(){
return $addedValues;
}
// rest goes here
}

$test1 = new TestFunction();
$test1->addValues("probability",0.234321);


Is such an approach of any use in your situation?

Regards,
Erwin Moller

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