ID: 39868
Updated by: [EMAIL PROTECTED]
Reported By: jb at ez dot no
-Status: Open
+Status: Feedback
-Bug Type: *General Issues
+Bug Type: Unknown/Other Function
Operating System: Kubuntu 6.10
PHP Version: 5.2.0
New Comment:
I don't see anything wrong here.
With "$b = new Child(); $a = new Master( $b );" the second line does
not get executed, of course you won't see any of Master methods
called.
But "$a = new Master( new Child() );" is totally different case -
Master::__construct() is called, you don't see the output because the
exception is thrown just before you print it.
Previous Comments:
------------------------------------------------------------------------
[2006-12-18 14:31:19] jb at ez dot no
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 this bug report at http://bugs.php.net/?id=39868&edit=1
