How can I force the execution of a PHP file in a global scope? -

i have php file, include.php has following contents:

<?php $myvar = "foo"; ?>

now, want create class, called globalinclude, can include file in global scope:

class globalinclude {     public function include( $file="include.php" ) {         #do smart         include $file         #do smart     } }

in it's current form, $myvar variable available inside scope of include function. want like:

globalinclude::include( "include.php" ); echo $myvar;

output foo

any ideas on how can accomplish this?

Barbera