Global variables declaration PROBLEM

[aqw]

hi!

I have a script in which there are variables that are declared global both inside some functions but also outside the scope of some function.

Are you allowed to declare a variable global without the scope of a function? I don't think so but i need you views.

If you tell me that declaring variables outside a function doesn't work i'll remove all the bedly declared variables (those declared outside a fn)
that'd'make me glad -> code easier to read

thx

[epp_b]

Variables declared and defined outside of a function are global. However, in order to use them within a function, you have to declare them as global within that function.

eg.

$var1 = "hello";

function foo() {
    global $var1;
    return $var1;
}

echo foo();

This will return "hello" (sans quotes, of course). But if you forgot to defind $var1 as global (notice the first line of the function global $var1), it would return nothing. It then would assume it is trying to access a variable in the local scope of that function.

As well, if you declare a variable within a function, it is local to that function, and cannot be called to from outside that function.

Of course, none of this applies to superglobals.

[aqw]

thx 4 your answer

but it wasn't really that i wanted to know actually.

=>

<?php

global $a, $b, $c, $d;

function test($a, $b, $c, $d) {
print("$a+$b+$c+$d");
}
?>

In my script i have strange stuff like this -> variables declared global outside functions.

do you believe i can remove those global definitions (i mean remove 'global $a, $b, $c, $d;' everywhere in my scripts???

bye