https://wpillar.svbtle.com 2014-08-14T18:02:52Z https://wpillar.svbtle.com/the-openclosed-principle-some-intepretatios 2014-08-14T11:02:52Z https://wpillar.svbtle.com/dbad-constructors-in-php-interfaces 2014-08-06T08:30:47Z