Is there a way to set the scope of require_once() explicitly to global?

Question

I'm looking for a way to set the scope of require_once() to the global scope, when require_once() is used inside a function. Something like the following code should work:

file `foo.php':

<?php

$foo = 42;

actual code:

<?php

function includeFooFile() {
    require_once("foo.php"); // scope of "foo.php" will be the function scope
}

$foo = 23;

includeFooFile();
echo($foo."\n"); // will print 23, but I want it to print 42.

Is there a way to explicitly set the scope of require_once()? Is there a nice workaround?

Answer 1

Apart from "globalizing" your variable, there is no way to do this:

global $foo;
$foo = 42;

OR

$GLOBALS['foo'] = 42;

Then your value should be 42 when you print it out.

UPDATE

Regarding the inclusion of classes or functions, note that all functions and classes are always considered global unless we are talking about a class method. At that point, the method in a class is only available from the class definition itself and not as a global function.