Problems with 'global' and '$GLOBALS'

[alanzhao]

hELLO:

Question 1:
Is it possible to access a variable which is defined in a function with values and 'global' statement. My test turn out to be not. But why, since a variable defined with 'global' statement in function can have outside values.

example 1:
function fun1()
{
$var = "hello";
global $var;
}
echo $var; // fails

example 2:
$var = "hello";
function fun1()
{
global $var;
echo $var;
}
fun1(); //normal, it's ok.

Question 2:
The variable defined with $GLOBALS in a function can be accessed from a script, but can't access from other functions, but can access by $GLOBALS[var] in function.

example 1;
function fun1()
{
$var = "hello";
$GLOBALS['var'];
}
echo $var; //ok
function fun2()
{
echo $var; // fails
echo $GLOBALS['var']; // ok
}

Why?

[van__]

What are you smoking?

You keep trying to reference a global as a regular variable and then say "ohhh man, why wont this work?"

$var is NOT $GLOBALS['var']
$var is NOT in the Global scope
$var is just plain ol little $var.

A GLOBAL needs to be called as a GLOBAL from both ends where it will be used.
Personally, I just use the GLOBALS['array'] directly so there is never any confusion about where a variable is coming from.

But either way you do it, the variable will HAVE to be declared a GLOBAL to be referenced properly.