Of all of the design patterns you could use in your code, the adapter pattern is one of my all time favourites. It allows you to abstract the implementation to an adapter that implements an interface. so you can switch implementation simply by switching the adapter.
PHP
On pricing
Seth Godin shares a compact set of pricing truths about value, story, and perception. It is especially good on why the right answer to “that’s too expensive” is often a better story, not a lower Read more…