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<?php

/*
  This class can be extended to support automatic dependency injection.
  The child class can have injected dependencies and needs only to call the parent (i.e. this) constructor.
  
    public function __construct(SubClass $subClass=null) {
  		parent::__construct();
  	}
 */

abstract class SelfInjector {

	public function __construct() {
		$reflector = new ReflectionClass($this);
		$constructor = $reflector->getConstructor();
		$dependencies = $constructor->getParameters();
		foreach ($dependencies as $dependency) {
			$variableName = $dependency->name;
			if (!!$class = $dependency->getClass()) {
				$this->{$variableName} = new $class->name;
			}
		}
	}
}