What Does A Double Dollar Sign Mean?

[Volitics]

Can anyone tell me what a "double dollar sign" or a "double scalar" means?

Below is a snippet of code (one of the variables has a "double dollar sign") that I have been trying to figure out:

PHP Code:

$dvf1  = "image$c".'_name';
$ofn   = $$dvf1;


I think that it (the "double dollar sign") assigns the value of one variable to another variable - but I'm not sure. I've got a few PHP books - none of them tell what it means.

Thanks.

Volitics

[superwormy]

It makes a variable with a name equal to the value of the original variable. If that makes any sense... works like this:


$var = "keith";

$$var = "palmer";

print ($keith);
// The output is: palmer


So in this case, we made a new variable, and the new variables name was the value of $var. We assigned "palmer" to the variable by the name of $var's value.

Hope tha thelped...

[Volitics]

superwormy;

That does help. Thanks.

Best Regards;

Volitics