ID: 25692
Updated by: [EMAIL PROTECTED]
Reported By: declan at context dot ie
-Status: Open
+Status: Bogus
-Bug Type: Arrays related
+Bug Type: *General Issues
Operating System: linux
PHP Version: Irrelevant
New Comment:
Try setting error_reporting to E_ALL and you'll find out why it doesn't
work.
Previous Comments:
------------------------------------------------------------------------
[2003-09-29 10:50:13] declan at context dot ie
Description:
------------
If you pass a variable name to a function and then try to dereference
that variable name for use in a global statement, then the global
statement fails.
I believe the problem lies in the way that global is implemented. If I
have the following:
$ary[foo]="bar";
function use_global($varname) {
global $$varname;
echo "$varname is set to ". $$varname;
}
use_global ("ary[foo]");
then I think that the global line is being re-written to be equivalent
to something like:
$_use_global_varname=&$GLOBALS["ary[foo]"];
whereas, AFAICS, it should be:
$_use_global_varname=&$GLOBALS["ary"]["foo"];
I want to be able to use this construct without having to know whether
the incoming variable is a plain variable or an array element.
Reproduce code:
---------------
<?php // -*-php-*-
function use_global ($formvar)
{
$ref=&$GLOBALS[$formvar];
echo "formvar: $formvar = " . $$ref;
};
$global=array ();
$global["foo"]=1;
$global["bar"]=2;
$global["baz"]=3;
echo "global[bar]=$global[bar]\n";
use_global("global[bar]");
?>
Expected result:
----------------
If things worked correctly, the output should be:
global[bar]=2
formvar: global[bar] =2
Actual result:
--------------
global[bar]=2
formvar: global[bar] =
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=25692&edit=1
