why doesnt this variable become global

[kevinkhan]

ok iv set up a simple demo

 

this is the code im running

 

include('simple_html_dom.php');
include('config.php');
include('connect.php');
include('functions.php');
include($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . 'globalFunctions.php');

test();

echo "test variable = ".$test;

exit;

 

this is the function which is in globalFunctions.php which is two directories back ../../

 

	function test() {
$test = 10;

global $test;
}

 

how come when i run script i am not getting variable echoed

 

[btherl]

What's happening there is you are setting a local $test to 10, then it gets overwritten when you do "global $test;".  Declaring a variable global will actually overwrite any local copy you had in that function.

 

If you set the value after declaring it global then it'll work as you expect.

[AbraCadaver]

I would get out of the habit of using global vars, but if you must, I would use:

 

$GLOBALS['test'] = 10;