From: jb at ez dot no
Operating system: Kubuntu 6.10
PHP version: 5.2.0
PHP Bug Type: *General Issues
Bug description: Destructor is called allthought constructor is never called
Description:
------------
It is possible for PHP to call the __destruct() on an
object allthough __construct() was never called. This
seems to happen when having nested object creations and
the inner one throws and exception in the constructor.
The attached reproducable code shows the problem:
Child::__construct() [Child]
Master::__destruct() [Master]
If the last line is changed to:
$b = new Child(); $a = new Master( $b );
it works of course.
In general destructors should never be called if the
constructor was not called or even if it did not finish.
Reproduce code:
---------------
class Master {
public function __construct( $child ) {
echo __CLASS__, "::__construct() [", get_class( $this ), "]\n";
}
public function __destruct() {
echo __CLASS__, "::__destruct() [", get_class( $this ), "]\n";
}
}
class Child {
public function __construct() {
echo __CLASS__, "::__construct() [", get_class( $this ), "]\n";
throw new Exception( "Child failure" );
}
public function __destruct() {
echo __CLASS__, "::__destruct() [", get_class( $this ), "]\n";
}
}
$a = new Master( new Child() );
Expected result:
----------------
Child::__construct() [Child]
Actual result:
--------------
Child::__construct() [Child]
Master::__destruct() [Master]
--
Edit bug report at http://bugs.php.net/?id=39868&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=39868&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=39868&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=39868&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=39868&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=39868&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=39868&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=39868&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=39868&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=39868&r=support
Expected behavior: http://bugs.php.net/fix.php?id=39868&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=39868&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=39868&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=39868&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39868&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=39868&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=39868&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=39868&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=39868&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=39868&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=39868&r=mysqlcfg
