php-factory

Introduction

It's about the factory design pattern implementation in this blog post.

Usage

Here is the example of creating the NyCar and NyHelicopter class instance via NyToysFactory.

NyCar class instance:

$nyToyFactory = new NyToysFactory();
$nyCar = $nyToyFactory->createToy('car'));

echo $nyCar->price; //30
echo $nyCar->name; //NyCar

NyHelicopter class instance:

$nyToyFactory = new NyToysFactory();
$nyHelicopter = $nyToyFactory->createToy('helicopter'));

echo $nyHelicopter->price; //300000
echo $nyHelicopter->name; //NyHelicopter

Prepare the NyCar

$nyToyFactory = new NyToysFactory();
$nyCar = $nyToyFactory->createToy('car');
$nyCar->prepare();
$wheels = $nyCar->wheels; //array count is 4
foreach($wheels as $nyWheel) {
    echo $nyWheel->name; //wheel
    echo $nyWheel->number; //1
}

Prepare the NyHelicopter

$nyToyFactory = new NyToysFactory();
$nyHelicopter = $nyToyFactory->createToy('helicopter');
$nyHelicopter->prepare();

$nyHelicopter->engine->name; //engine
$nyHelicopter->rotorBlade->number; //1