Function attributes

[Anon]

I would like to create a function that uses a global variable to give a value to one of it's initializing attributes like this:

$APP = 0;
function auth($A=$APP, $T="blah")
{
//...........
}

The problem I'm having (I think it's obvious) is that I cannot assign the value of a variable to a function initialization variable. Would it work if I used a constant instead? Is there another way around this?

Basically I just need to have this function default to a globally supplied value if none is given durring a function call.

HELP!
Thanks 🙂

[Anon]

why not just:
function auth($A=0, $T="blah")
{
//...........
}

?

[Anon]

You'll probably have to do it this way:

$APP = 0;
function auth($A=0, $T="blah")
{
global $APP;
$A = ($A == 0) ? $APP : $A;
// Rest of stuff goes here, $A shouldn't be 0
}

[Anon]

The scope of the function is to encompase numerous applications. Each application is going to have a different value for $A and $T and I may need to call the function perhaps 100 or more times for each app. It would be nice to provide a global value. Maybe this would work...

function ($A=NULL, $T=NULL){
if(isset($GLOBALS["A"])){$gl_A=$GLOBALS["A"];}else{$gl_A=0}
if(isset($GLOBALS["T"])){$gl_T=$GLOBALS["T"];}else{$gl_T=0}
if($A==NULL){$lo_A=$gl_A;}
if($T==NULL){$lo_T=$gl_T;}
//otherwise the passed values are used
}

Any comments on whether or not this will work? (going to try it when I get home)