GLOBAL Variables

[TOrpheus]

Hi,

Question about GLOBAL variables... here's a sample:

function fn1() {
global $var = "tyson";
}

function fn2() {
fn1();
echo $var;
}

fn2();

This doesn't work... can anyone see why not???

[RedDragon]

try

function fn1() {
global $var;
$var = "tyson";
}

function fn2() {
fn1();
echo $var;
}

fn2();

[Weedpacket]

Originally posted by TOrpheus
Hi,

Question about GLOBAL variables... here's a sample:

function fn1() {
global $var = "tyson";
}

function fn2() {
fn1();
echo $var;
}

fn2();




This doesn't work... can anyone see why not???

Yes, the $var in fn2() is local to fn2 - there's nothing in fn2() to say it's a global variable.

[TOrpheus]

Thanks Red Dragon... I actually had that in mind when writing that sample code. That change still doesn't change anything...

Weedpacket... I just see my sample as an extension to:

function f3() {
global $var;
$var = "tyson";
}

f3();
echo $var;

That sample will output "tyson".

So in my situation, I'm doing the samething within a function.

Thanks for any help! 🙂

[mcgruff]

$GLOBALS is a superglobal so access anywhere with $GLOBALS['var'] - don't need to declare a "copy".

[TOrpheus]

Excellent post mcgruff... that explains it to me clearly... thanks again to Weedpacket and Red Dragon!