How to know if a public class variable is declared

[flaab]

Hi :-)

 

I've been struggling arround for a while and don't know how to make this.

 

I would like to know if a certain class variable is declared (even if no value has been assigned to it). For example...

 

class foo
{
    var $something;        // Declared with no value
    //var $else;               // Commented, not declared
}

$obj = new foo();

// Note function is_declared does not exists...I need a function to do this...
if(is_declared($foo->something))
    echo "Something variable is declared";

if(!is_declared($foo->else))
    echo "Else is not declared";

 

When using isset, false is always retrieved because no value is assigned to those vars.

 

Thanks a lot!

 

[Ken2k7]

The variable $foo isn't defined. Try $obj instead.