The situation:
index.php:
<?php
include("foo.php");
include("baz.php");
foo("bar.php");
?>
baz.php:
<?php
$x = 42;
?>
foo.php:
<?php
function foo($p) {
include_once($p); // please dont mind the inclusion hole
}
?>
bar.php:
<?php
echo $x;
?>
Zend notice: Undefined variable: x
Placing global $x; in bar.php removes the notice, but I understand why there is a notice about this in the first place.. Doesn't include pretty much work like including C headers? It would mean that the interpreted code would look like this:
<?php
function foo($p) {
include_once($p); // please dont mind the inclusion hole
}
$x = 42;
// this however, is included by a function...
// does the function's scope influence the stuff it includes?
echo $x; // undefined variable
?>
My editor is the Eclipse/Zend package.
I'm no expert, so please don't flame me if I'm wrong, but I think the file called by include_once or require_once is called in the context of the caller. Since function foo() won't know about $x then neither will any of its called includes. You could experiment by 'declaring' $x inside function foo() with the same setup as above.