Bug #16687 Updated: Constants not being interpreted in "variable variables"

ID: 16687 Updated by: goba@php.net Reported By: lux@simian.ca Status: Open Bug Type: Documentation problem Operating System: Red Hat Linux 7.1 PHP Version: 4.2.0 New Comment: I have already reported this problem, but nothing happened. Superglobals seemed to be accessible with variable variables in the global scope, but not in any local scope (inside a function). Derick told me, that it is by design, but IMHO this is incosistent, and quite ugly :(( -- Goba Previous Comments: ------------------------------------------------------------------------ [2002-04-19 14:53:51] mfischer@php.net Reclassified. It should be documented that due the special way super globals are treated the cannot be used with variable variables. ------------------------------------------------------------------------ [2002-04-19 12:40:50] mfischer@php.net True true. Derick (or someone else) mind briefly explaining why this is/has to be different? ------------------------------------------------------------------------ [2002-04-19 11:11:00] lux@simian.ca But then why does it work under certain circumstances and not others? Regardless whether intended or not, this is inconsistent behaviour. I also think that having these differences between regular variables and the "superglobals" shouldn't be necessary. If I can't use them in the same contexts as regular variables, then I would personally prefer the $HTTP_*_VARS instead, because you can. I have found my approach to abstracting this difference ($HTTP_*_VARS vs. $_*) between PHP versions to be really beneficial to my scripts. I can abstract them both down to one name, and use a single reference to the appropriate one instead of sticking if statements every time I need to know which one to use. Sorry to keep buggin' ya, but I think this may be a fair enough argument for change. ------------------------------------------------------------------------ [2002-04-19 10:33:59] derick@php.net You can't use superglobals indirectly, check this: $t = "_GET"; var_dump ($$t); doesn't work neither, and it wasn't supposed to work. However, this does work (because $HTTP_GET_VARS is not a superglobal): $t = "HTTP_GET_VARS"; var_dump ($$t); Derick ------------------------------------------------------------------------ [2002-04-18 19:09:09] sniper@php.net reclassified ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/16687 -- Edit this bug report at http://bugs.php.net/?id=16687&edit=1