ahonymous

1. All tags for services: http://symfony.com/doc/current/reference/dic_tags.html
2. Base documentation: http://symfony.com/doc/current/event_dispatcher.html , http://symfony.com/doc/current/components/event_dispatcher.html
3. Request/Responce before-after filters: http://symfony.com/doc/current/event_dispatcher/before_after_filters.html
4. Doctrine Listeners: http://symfony.com/doc/current/doctrine/event_listeners_subscribers.html
5. Doctrine Events: http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/events.html

wojteklu

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

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General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

Tom32i

<?php

namespace Acme\Serializer\Normalizer;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
use Symfony\Component\Serializer\Normalizer\SerializerAwareNormalizer;