Bug #51421 [Csd]: Abstract __construct constructor argument list not enforced

Edit report at http://bugs.php.net/bug.php?id=51421&edit=1 ID: 51421 Updated by: felipe@php.net Reported by: awood at theiet dot org Summary: Abstract __construct constructor argument list not enforced Status: Closed Type: Bug Package: Scripting Engine problem Operating System: Windows XP SP3 PHP Version: 5.2SVN-2010-03-29 (snap) Assigned To: felipe New Comment: The fix has been reverted for 5.2 and 5.3 branches, due BC issue. Previous Comments: ------------------------------------------------------------------------ [2010-06-28 18:38:00] felipe@php.net Automatic comment from SVN on behalf of felipe Revision: http://svn.php.net/viewvc/?view=revision&revision=300817 Log: - Reverted fix for bug #51421 ------------------------------------------------------------------------ [2010-06-27 00:05:15] felipe@php.net This bug has been fixed in SVN. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. ------------------------------------------------------------------------ [2010-06-27 00:05:15] felipe@php.net Automatic comment from SVN on behalf of felipe Revision: http://svn.php.net/viewvc/?view=revision&revision=300770 Log: - Fixed bug #51421 (Abstract __construct constructor argument list not enforced) ------------------------------------------------------------------------ [2010-03-29 01:41:53] awood at theiet dot org Description: ------------ PHP Version = 5.2.6.6 I cannot seem to enforce a class's __construct argument list by defining an abstract constructor in the base class. This can, however, be achieved as expected by using an object interface. This was mistakenly reported as not working for interfaces either in bug #43557 (closed). Test script: --------------- class Type1 {} //for demo purposes class Type2 {} //for demo purposes abstract class BaseClass { abstract public function __construct(Type1 $foo, Type2 $bar); } class ExtendedClass extends BaseClass { public function __construct() { //expected - fatal error as argument list doesn't match //actually happens - nothing, script continues as normal } } interface SomeInterface { public function __construct(Type1 $foo, Type2 $bar); } class InterfacedClass implements SomeInterface { public function __construct() { //generates fatal error as expected } } Expected result: ---------------- Fatal error when declaring ExtendedClass and InterfacedClass as abstract and concrete method signatures are different. Actual result: -------------- Only a fatal error when declaring InterfacedClass, no error when declaring ExtendedClass. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=51421&edit=1