Recently while working on an application I found myself asking a number of architectural questions. These were questions about things that I might consider “fundamental” – elements of the application, how many methods each class might receive, and how to put it all together into something cohesive.
You might have asked yourself some of the same questions.
In the past I’ve written up installing various versions of PHP on new releases of Ubuntu, or for new releases of PHP. In those posts I’ve often recommended compiling PHP from scratch. However, compiling PHP from scratch is a serious chore, and keeping it up to date is even more of a serious responsibility. There are better ways.
The PPA’s by Ondřej Surý
When I was younger, I had strong opinions about many subjects. I felt I was right about a great many things, and anyone who disagreed with me was wrong. In my mind there was a right or a wrong, a black and a white, with little room for grey. Others were certainly entitled to their own opinion, but that didn’t make them any less wrong if their opinion differed from my own.
As I’ve gotten older, I’ve begun to realize in programming, and in life, so often things rely on a two word phrase that makes all the difference: it depends.
PHP more or less has two kinds of dependency injection available: constructor injection, and setter injection.
Constructor injection is the process of injecting dependencies through the constructor arguments, like so:
User experience matters.
Nowhere is this clearer than in the case of the accidental missile launch warning that was sent to all of Hawaii.
Here’s a copy of the the actual screen that was used by technicians to send out alerts of various types:
The other day I came across the following code in a project:
public function __construct(PDO $pdo)
$this->pdo = $pdo;
public function getAllUsers()
$stmt = $this->pdo->prepare('SELECT * FROM users');