#43080 [Opn->Fbk]: Global object is null before destroying it.

ID: 43080 Updated by: jani@php.net Reported By: joustin at post dot pl -Status: Open +Status: Feedback Bug Type: Class/Object related Operating System: win32 PHP Version: 5.2.4 New Comment: Upgraded from what PHP version..? AFAIK, this is how it should work, so I don't understand why you report a bug about it.. Previous Comments: ------------------------------------------------------------------------ [2007-10-23 10:43:02] joustin at post dot pl Description: ------------ This is quite interesting. Appeared after upgrading to 5.2.4 and broke my code. It's great that objects are finally destroyed in the right order, but a whole lot of code still relies on "destroy all" or "cleanup" functions. What struck me is that as of 5.2.4, my object in the moment of calling it's destructor, in global scope, appears as NULL. I've also devised a simple and dirty workaround, which is found in the code below. Thanks! Reproduce code: --------------- class foo { function __construct(){ echo "Constructed foo\n"; } function getDb(){ echo "Getting DB"; } function __destruct(){ echo "Destructing foo\n"; echo "Trying to destruct bar\n"; global $bar; if(false){ // DIRTY WORKAROUND global $foo; $foo = $this; } $bar->__destruct(); } } class bar { protected $destroyed = false; function __construct(){ echo "Constructed bar\n"; } function __destruct(){ if(!$this->destroyed){ echo " Destructing bar\n"; global $foo; echo " Our global parent, foo, is of type ".gettype($foo)."\n"; $this->destroyed = true; } } } $bar = new bar(); $foo = new foo(); echo "--\nScript finishes...\n"; Expected result: ---------------- Constructed bar Constructed foo -- Script finishes... Destructing foo Trying to destruct bar Destructing bar Our global parent, foo, is of type object Actual result: -------------- Constructed bar Constructed foo -- Script finishes... Destructing foo Trying to destruct bar Destructing bar Our global parent, foo, is of type NULL ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=43080&edit=1