mcsee

<?

$triangle = 
    new Polygon([new Point(1, 1), new Point(2, 2), new Point(3, 3)]);
$lastPoint = $triangle->getVertices()->last();
foreach ($triangle->getVertices() as $vertex) {
    $canvas->drawLine($vertex, $lastPoint);
    $lastPoint = $vertex;
}

mcsee

<?

  $triangle = new 
    Polygon([(new Point(1,1), new Point(2,2), new Point(3,3))]);
  array_shift($triangle->getVertices());

mcsee

<?

function iterator(): Iterator {
    return new ArrayIterator($this->vertices);
}

mcsee

<?

function verticesDo($function) {
    foreach ($this->vertices as $vertex) {
        $$function($vertex);
    }
}

mcsee

<?

  final class TwitterAccount {
  private $followers;
  
  private function __construct() {
      $this->followers = [];
    }
  }

mcsee

<?

  $mcsee1 = new TwitterAccount('mcsee1');
  $pontifex = new TwitterAccount('pontifex');
  $mcsee1->getFollowers()[] = $pontifex;

mcsee

<?

  $mcsee1 = new TwitterAccount('mcsee1');
  $pontifex = new TwitterAccount('pontifex');
  $mcsee1->addFollower($pontifex);

mcsee

<?

	StrategySupervisedHelper::getInstance()->optimize($processId);

mcsee

<?

	StrategySupervisedHelper::getInstance()->optimize($processId);

mcsee

<?

  class StrategySupervisedHelper extends Singleton {
	// ...
  }