Global Scope issues......

stevieb

Hi everyone,

I'm having scope issues. Is there anyway to make a variable accessable across all functions.

Heres the senario:

global $var
$var = "hello"

function myFunction()
{
print "$var"; // prints hello
}

So thats fine, but when i do this:

global $var
$var = "hello"

function myFunction()
{
myPrintFunction();
}

function myPrintFunction()
{
print "$var"; // prints f*** all
}

theres the problem. I dont want to pass the variables as arguments in the function calls because the variables are part of a global configuration file, included at the beginning of the script.

Anyone got any ideas?

cheers,

steve

cordex

function myPrintFunction()
{
global $var;
print "$var"; // prints f*** all
}

stevieb

Thats ok, but the variables are set in a seperate file. Its more like this:

--- conf file
global $var
$var = "Hello";

--- script file 1
function myFunction()
{
myPrintFunction();
}

function myPrintFunction()
{
print "$var";
}

The variables are assigned in one file and need to be access by all other functions in all other files....

cheers

steve

russmichell

Is it not feasable in your project to have:

A functions file: includes/functions.lib.php
A variable assignment script: includes/config.inc.php

Then in every page that requires them:

<?php
require("includes/config.inc.php");
require("includes/functions.lib.php");

//----rest of script/s

Just my 2p's worth.....probably worth f*** all!

Russ

stevieb

Thats what i've done at works ok until you try and call a function within a function.

like:
$var = "var" // from config

function1()
{
// here $var can be used
function2()
}

function2()
{
// here $var is nothing.....
print "$var";
}

the global scope only seems to work one function level down...

steve

[deleted]

"the global scope only seems to work one function level down..."

that is correct (and it says so in the manual :-) )

This is not bad, this is good. Globals are evil. Only use them for 'read only' variables, never for read/write vars.

stevieb

Ok then.....

The vars i'm are only for reading btw....

I'm assuming that there is no 'full global' function :-)

Anyway cheers for the help everyone

steve

[deleted]

Nope, there is no way to declate a var 'global', you can only import vars from the global scope. (again, this is a good thing)