php interface ArrayProcessor public function getValueFromArray Array a

<?php

interface ArrayProcessor
{
	public function getValueFromArray(Array $array);
}

interface Integerable
{
	public function getIntegerScalar();
}

interface IntegerProcessor
{
	public function getValueFromInteger(Integerable $integer);
}

interface IntegerableArrayProcessor extends ArrayProcessor, Integerable
{
}

interface Floatable extends Integerable
{
	public function getFloatScalar();
}

abstract class AbstractFloatable implements Floatable
{
	public function getIntegerScalar()
	{
		return (int) $this->getFloatScalar();
	}
}

interface Filter
{
	public function apply(Request $request, Response $response);
}

class FilterChain implements Filter
{
	private $filters = Null;

	public function __construct()
	{
		$this->resetFilters();
	}

	protected function resetFilters()
	{
		$this->filters = new ArrayObject();

		return $this;
	}

	public function attach(Filter $filter)
	{
		$this->filters->append($filter);
	}

	public function apply(Request $request, Response $response)
	{
		foreach ($this->fitlers as $filter)
		{
		  $filter->apply($request, $response)
		}
		
		return $this;
	}
}