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Bug #25516 Gtk Widgets cannot be stored in Object Variables
Submitted: 2003-09-12 10:14 UTC Modified: 2006-07-13 16:36 UTC
Avg. Score:3.0 ± 1.6
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:1 (100.0%)
From: auroraeosrose at hotmail dot com Assigned:
Status: Closed Package: PHP-GTK related
PHP Version: 1.0.0 OS: Win XP Pro SP1
Private report: No CVE-ID: None
 [2003-09-12 10:14 UTC] auroraeosrose at hotmail dot com
I went to the mailing list first to make sure I wasn't losing my mind and they assured me I'm supposed to be able to store a widget in an object variable.  I'm using builds from for php5 and php-gtk for php5

The code I'm using is very simple - it's just supposed to show a window.  The class is below - very basic.  Here's the deal - when use $this->window inside the newWindow method nothing happens.  The script runs, I guess, and that's the end of it.

It seems to be impossible to assign a php-gtk widget to an object variable, which is really, really annoying

Reproduce code:

$class = new Window();
$window = $class->newWindow('main', 'Product :: Title Here');
$window->connect('destroy', 'destroy');
$window->connect('delete-event', 'delete');

 function delete()
  return FALSE;

 function destroy()

class Window
 var $window;

function newWindow($name, $title, $type = GTK_WINDOW_TOPLEVEL, $width =
NULL, $height = NULL, $position = GTK_WIN_POS_CENTER)
 //find height and width
  $width = gdk::screen_width()-50;
  $height = gdk::screen_height()-100;
 //create the window
 $this->window = new GtkWindow($type);
 $this->window->set_default_size($width, $height);
 return $this->window;

Expected result:
A window should appear

Actual result:
Nothing happens, no errors, the script just kind of acts like it was run and closed.

Here's some more weirdness - php seems to be dying completely (and silently) on

$this->window = new GtkWindow($type);

because I can't echo or print_r or var_dump anything after that call, while before I can just fine, and I'm not getting any errors.

And if I change every occurence of $this->window to just $window and try to do a var_dump, nothing is printed but the window appears.  If I do a print_r on $window
I get GtkWindow Object - and the window appears properly - so the problem is with the object variable.


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 [2003-09-12 23:33 UTC]
can you follow php4 conventsions and use aliasing? 
$class = &new Window();
$this->window = &new GtkWindow($type);

does it work ok then?

There is a BC flag in php.ini that is supposed to turn off/on object cloning.. - is that set?
 [2003-09-15 07:31 UTC] auroraeosrose at hotmail dot com
Although I can't find the directive in the php.ini I'm using, implicit clone is off if you check phpinfo();  But that would only matter if I were trying to copy an object, e.g. $window =  new GtkWindow(); $newwindow = $window; ...but I'm not doing any of that, I'm just trying to assign a gtk widget to an object variable

Aliasing does absolutely nothing - problem still exists
 [2003-10-03 21:38 UTC]
I think without a final 'release' version or some ability to debug on XP  it will be imposible to diagnose or fix this.

Suspending until PHP5 & PHP-GTK are actually released.

You may just try removing all the PHP & PHP-GTK binaries and update from the latest snapshots.
 [2006-07-13 16:36 UTC] auroraeosrose at hotmail dot com
Fixed in current CVS
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