Adding Class variables during runtime

Anon

Hi,
I need to add some variables to a class after defining them. Is it possible?
Example:

class CResult
{
var $iItemCount = 0;
var $iCursor = 0;
var $bError;

function addVar($sVarName,$value)
{
//someting like this pseudo function
$this->addVar($sVarName);
$this->$$sVarName = $value;
}
}

cornelalexa

Hmm.You can define a new var for a given object with just a simple adressing.Supose you have a class foo and this class have 2 vars in it called var1 and var2 how we add var3 ?

$fo= new foo;
//print the var1 and var 2
echo $fo->var1,$fo->var2;
//now adding var3
$fo->var3="some text";
//now print our var3
echo $fo->var3;
//you will got "some text";

Triki no?
Bye.

tomhath

Pretty slick. It doesn't really answer the question, but it might be what he wanted.

The question was "Can you add a variable to a class?". I dont think you can. Your example implicitly declares a new variable associated with one object instantiated from the class; but no other objects of that class will have the new variable, will they? So the class was not changed, just one object.

My first thought was to have an array inside the class, and add key=>value pairs as needed. At least you could write some class methods that could use the array. I can't see that $fo->var3 provides much to the class, but maybe Im missing something.

cornelalexa

Even if the array is defined in the source of the class you can't add data in it without instanciating an object based on it.
And all data from it, will not be available to all instances.With my method you can define quick store like properties for some needs.Even arrays or objects inside that (instantiated).
There is no another way to change a class before that was started except treated as a string add our vars with some string methods and the instantiate the class using the eval() function.This can work because we change the original code of the class.
It's the only way I see.