Hi!
I need define a global variable in my Page.php. I put global $a =0 after Page controller but is wrong..can you hel me to define my global varable?Where?Thanks

I use mysite/_config.php and I set:
global $a;
$a = 0;
then in my function I recall $a in this way:
global $a;
but seems not be a global variable..

If you want it in the template then you have to wrap it in a PHP function which returns the global.

So try this in your Page.php file

ok..I understand what you say but my problem is that if my function return global variable (global value are 1 or 0) and call the function in template I see only 1 or 0 and all template disappear.
I need to use global value in template to print two different menu:
if global variable is equals to 1 print all menu otherwise if global variable is equals to 0 only 2 voices of menu.

so I recall function as:

<% if Somevar = 1 %>
....
<% else %>
..
<% end_if %>