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Request #75253 unable to call func_get_args() in a file required from within a function
Submitted: 2017-09-24 12:55 UTC Modified: 2017-09-24 17:12 UTC
From: Wes dot nospam at example dot org Assigned:
Status: Not a bug Package: *General Issues
PHP Version: Irrelevant OS:
Private report: No CVE-ID: None
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 [2017-09-24 12:55 UTC] Wes dot nospam at example dot org 
Description:
------------
This is disallowed: "called from the global scope"
but should be allowed.
the data is kind-of available anyway in debug_backtrace().

Test script:
---------------
file1.php:
<?php
function bar($a, $b, $c){ require("file2.php"); }
bar(1,2,3);

file2.php:
<?php
assert(func_get_args() === [1,2,3]);

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 [2017-09-24 17:12 UTC] jhdxr@php.net
-Status: Open +Status: Not a bug
 [2017-09-24 17:12 UTC] jhdxr@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

Even if you can retrieve those info from `debug_backtrace()`, it doesn't prove this kind call of `func_get_args()` should be allow. Consider if it's allowed and  file1 is under namespace Foo, while file2 is non-namespaced. It will leads to an undefined behavior, see https://wiki.php.net/rfc/forbid_dynamic_scope_introspection for more info.
 
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