ID: 16712
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Open
Bug Type: Class/Object related
Operating System: Linux RedHat 7.2
PHP Version: 4.1.2
New Comment:
The assignment does work while staying local btw... so an echo $b->v;
within ta() would display 1 as it should.
I'm not sure about the exact implementation of PHP, but i think globals
ARE pointers, right ? That would explain it (though i'm not happy with
it).
If so the line
global $b;
would do the same as
$b(local) =& $b(global);
and thus a reassignment of $b to another point would seperate him from
$b(global).
Still i would like to re-reference my $b(global) in a local function.
Is there maybe a workaround or is it an impossibility ?
Previous Comments:
------------------------------------------------------------------------
[2002-04-20 10:31:48] [EMAIL PROTECTED]
While using classes, pointers and globals I noticed data not being
migrated to the globalsphere due to pointerassignments.
[Example]
class test {
var $v=0;
function set($i) { $this->v = $i; }
}
$a = new test();
$b =& new test();
$c =& $b;
function ta() {
global $a,$b,$c;
$a->set(1);
$b =& $a;
$c->set(2);
}
ta();
echo "$a->v,$b->v,$c->v";
[/example]
This should display 1,1,2 since $b has been set to $a, but this
pointer-assigment isn't emigrated to the global $b.
I have done many expirements with it to see if i could further specify
the bug... at first i thought it was destroying non-globals that got
pointed too at the end of the functioncall and thus (accidently)
destroying the pointers in the process, but then if i would point $a to
$b and export them both, neither should be destroyed, so the reference
should stay intact... it isn't.
So the only thing that remains is that function-local
pointer-assigments not seem to affect my global var.
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=16712&edit=1
