Variable Variables?

[youradds]

Hi. I havea bit of a dilema here. Ok, this is what I have;

$gold = $gold_{$categoryis};

$categoryis is defined a little further up, with either Local, Regional or Global.

Then I have 3 variables deifned as;

$gold_Local = 5;
$gold_Regional = 8;
$gold_Global = 10;

However, I get a parse error on like 238, which is the $gold = $gold_... part.

Anyone know how to do what I am doing? Basically, a link is grabbed from MySQL, it has either Local, Regional or Global defined as the category type. What I need to do is echo assign the correct 'value' to the differnt types to a variable called 'gold'. Anyone got any ideas?

Thanks, and sorry if I'm confusing

Andy

 

[DumTech]

What about an array?

$gold['local']=5;
$gold['regional']=8;
$gold['global']=10;

Just a thought. Don't know if that's what you're looking for or not. Matt
matt@paperlove.org
If I can help, I will.

 

[rycamor]

I don't think that is the correct syntax for variable variables. Did you look at

http://www.php.net/manual/en/language.variables.variable.php

?

You can use the ${expression} approach, which essentially evalutes the string produced by the expression and then treats that as a variable. So you would want to do something like:

$gold = ${"gold_" . $categoryis};

or, I think you could even get away with

$gold = ${"gold_$categoryis"};

It's actually the same thing as doing

eval ("\$gold = \$gold_" . $categoryis);

Although I will agree with DumTech: most of the time these kinds of problems can be solved more elegantly and flexibly in an array. -------------------------------------------

"Calculus is just the meaningless manipulation of higher symbols"
                          -unknown F student