Bug #65150 [Nab]: DateTime subclasses expose extra properties

Edit report at https://bugs.php.net/bug.php?id=65150&edit=1 ID: 65150 User updated by: mike at silverorange dot com Reported by: mike at silverorange dot com Summary: DateTime subclasses expose extra properties Status: Not a bug Type: Bug Package: Date/time related Operating System: CentOS or RHEL PHP Version: 5.3.26 Block user comment: N Private report: N New Comment: The suggested design patterns are not appropriate in this instance because my object should be an instanceof DateTime. There is no common interface for DateTime that allows a proxy object. The new DateTimeInterface in PHP 5.5 does not contain all the methods of DateTime. Previous Comments: ------------------------------------------------------------------------ [2013-06-28 18:55:35] mike at silverorange dot com The properties are not exposed on regular DateTime objects, only on subclasses. The exposed properties are also read-only which is unintuitive for PHP userland developers. ------------------------------------------------------------------------ [2013-06-28 17:30:13] ab@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php The properties are exposed intentionally, so that's ok. To achieve teh goal you've described the proper way were to use an appropriate design pattern, maybe Facade or Proxy. ------------------------------------------------------------------------ [2013-06-27 21:04:03] mike at silverorange dot com Description: ------------ I expected the DateTime class properties to be private or at least protected so users of my subclass don't get internals exposed. See also https://bugs.php.net/bug.php?id=49382 Test script: --------------- class MyDate extends DateTime { public $extra = ''; } $d = new MyDate('2013-01-01', new DateTimeZone('UTC')); var_dump($d); Expected result: ---------------- class MyDate#1 (4) { public $extra => string(0) "" } Actual result: -------------- class MyDate#1 (4) { public $extra => string(0) "" public $date => string(19) "2013-01-01 00:00:00" public $timezone_type => int(3) public $timezone => string(3) "UTC" } ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=65150&edit=1