Bug #18516: Variable-variables referencing a superglobal in a function don't work

From: dilbert@hack3r.com Operating system: All PHP version: 4.2.2 PHP Bug Type: Variables related Bug description: Variable-variables referencing a superglobal in a function don't work <? $h= "_GET"; print_r($$h); echo "<hr>"; function g() { print_r($_GET); } g(); echo "<hr>"; function t() { $g= "_GET"; print_r($$g); } t(); echo "<hr>"; $h = "hi"; function b() { global $h; $g = "h"; print_r($$g); } b(); ?> I've reported a similiar bug earlier (but forgot to include something trivial in the test script and thought it was a larger one than it is... i was rebuffed, it was marked bogus, and nobody seems to pay attention to "bogus" bugs) In the function above: The first print_r works as expected, verifying that variable-variable referencing DOES work. The g() function works as expected, verifying that superglobals are available in function scope. The t() function seems to do NOTHING, this is where the bug seems to be. The b() function works as expected, verifying that it works with regular globals. -- This has been tested and observed on OpenBSD and linux, with PHP versions 4.2.1 and 4.2.2 Ted -- Edit bug report at http://bugs.php.net/?id=18516&edit=1 -- Fixed in CVS: http://bugs.php.net/fix.php?id=18516&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=18516&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=18516&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=18516&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=18516&r=support Expected behavior: http://bugs.php.net/fix.php?id=18516&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=18516&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=18516&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=18516&r=globals