Symfony 3 certification guide

Collections of links based on the topics included in the Symfony 3.0 certification exam.

More info: https://sensiolabs.com/en/symfony/certification.html

Inspired by the Symfony 2.3 certification guide of [jmolivas] (https://github.com/jmolivas/symfony-certification-guide)

PHP

• Object Oriented Programming
  http://php.net/manual/en/language.oop5.php
• Namespaces
  http://www.php.net/manual/en/language.namespaces.php
  https://knpuniversity.com/screencast/php-namespaces-in-120-seconds/namespaces
• Interfaces
  http://www.php.net/manual/en/language.oop5.interfaces.php
• Anonymous functions and closures
  http://www.php.net/manual/en/functions.anonymous.php
• Abstract classes
  http://www.php.net/manual/en/language.oop5.abstract.php
• Exception and error handling
  https://secure.php.net/manual/en/class.exception.php
  http://php.net/manual/en/language.exceptions.php
• Traits
  http://php.net/manual/en/language.oop5.traits.php
• PHP extensions
  http://php.net/manual/en/extensions.php
• SPL
  http://php.net/manual/en/book.spl.php
• Web security (XSS, CSRF, etc.)
  http://php.net/manual/en/security.php

---

HTTP

• Client / Server interaction
  http://symfony.com/doc/3.0/book/http_fundamentals.html
• Status codes
  http://en.wikipedia.org/wiki/List_of_HTTP_status_codes
• HTTP request
  http://symfony.com/doc/3.0/components/http_foundation/introduction.html#request
• HTTP response
  http://symfony.com/doc/3.0/components/http_foundation/introduction.html#response
• HTTP methods https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
• Cookies
  https://en.wikipedia.org/wiki/HTTP_cookie
  http://symfony.com/doc/3.0/components/http_foundation/introduction.html#setting-cookies
• Caching
  http://symfony.com/doc/3.0/book/http_cache.html
• Content negotiation
  https://developer.mozilla.org/en-US/docs/Web/HTTP/Content_negotiation
  http://symfony.com/doc/3.0/components/http_foundation/introduction.html#accessing-accept-headers-data
• Language detection

---

Symfony Architecture

• Symfony Standard Edition
  http://symfony.com/distributions
  https://github.com/symfony/symfony-standard
• License
  http://symfony.com/doc/3.0/contributing/code/license.html
• Components
  http://symfony.com/doc/3.0/components/index.html
• Bundles
  http://symfony.com/doc/bundles/
  http://symfony.com/doc/3.0/cookbook/bundles/best_practices.html
  http://symfony.com/doc/3.0/quick_tour/the_architecture.html#understanding-the-bundle-system
• Bridges
  http://stackoverflow.com/questions/11888522/what-are-symfony-bridges-bundles-and-vendor
• Configuration
  http://symfony.com/doc/3.0/quick_tour/the_architecture.html
  http://symfony.com/doc/3.0/cookbook/configuration/index.html
  http://symfony.com/doc/3.0/cookbook/bundles/best_practices.html#configuration
  http://symfony.com/doc/3.0/cookbook/bundles/extension.html
• Code organization
  http://symfony.com/doc/3.0/quick_tour/the_architecture.html#understanding-the-directory-structure
• Request handling
  http://symfony.com/doc/3.0/book/http_fundamentals.html#the-journey-from-the-request-to-the-response
• Exception handling
  http://symfony.com/doc/3.0/cookbook/controller/error_pages.html
• Event dispatcher and kernel events
  http://symfony.com/doc/3.0/components/event_dispatcher/introduction.html
  http://symfony.com/doc/3.0/components/http_kernel/introduction.html
• Official best practices
  http://symfony.com/doc/3.0/best_practices/index.html
• Release management
  http://symfony.com/doc/3.0/contributing/community/releases.html
• Backward compatibility promise
  http://symfony.com/doc/3.0/contributing/code/bc.html
• Deprecations best practices
  http://symfony.com/blog/paving-the-way-for-symfony-3-with-the-deprecation-detector-tool

---

Standardization

• Release management and roadmap schedule
  http://symfony.com/doc/3.0/contributing/community/releases.html
• Framework interoperability and PSRs
  http://www.php-fig.org/psr/
• Naming conventions
  http://symfony.com/doc/3.0/contributing/code/standards.html#naming-conventions
• Coding standards
  http://symfony.com/doc/3.0/contributing/code/standards.html
• Third-party libraries integration
  http://symfony.com/doc/3.0/cookbook/bundles/installation.html
• Composer packages handling
  https://getcomposer.org/doc/00-intro.md#introduction
  http://symfony.com/doc/3.0/cookbook/composer.html
• Development best practices
  http://symfony.com/doc/3.0/cookbook/deployment/tools.html
• Framework overloading
  http://symfony.com/doc/3.0/cookbook/configuration/override_dir_structure.html
  http://symfony.com/doc/3.0/cookbook/bundles/inheritance.html
  http://symfony.com/doc/3.0/cookbook/bundles/override.html
• Semantic versioning
  http://semver.org/

---

Bundles

• Naming conventions
  http://symfony.com/doc/3.0/cookbook/bundles/best_practices.html#bundle-name
• Code organization
  http://symfony.com/doc/3.0/cookbook/bundles/best_practices.html#directory-structure
• Controllers
  http://symfony.com/doc/3.0/book/controller.html
  http://symfony.com/doc/3.0/cookbook/bundles/best_practices.html#controllers
• The views
  http://symfony.com/doc/3.0/quick_tour/the_view.html
• The resources
  http://symfony.com/doc/3.0/best_practices/web-assets.html
• Overriding default error pages
  http://symfony.com/doc/3.0/cookbook/controller/error_pages.html
• Bundle inheritance
  http://symfony.com/doc/3.0/cookbook/bundles/inheritance.html
• Event dispatcher and kernel events
  http://symfony.com/doc/3.0/cookbook/event_dispatcher/event_listener.html
• Semantic configuration and compiler passes
  http://symfony.com/doc/3.0/cookbook/service_container/compiler_passes.html
  http://symfony.com/doc/3.0/components/dependency_injection/compilation.html

---

Controllers

• Naming conventions
  http://symfony.com/doc/3.0/book/routing.html#controller-string-syntax
• The base Controller class
  http://symfony.com/doc/3.0/book/controller.html#the-base-controller-class
• The request
  http://symfony.com/doc/3.0/components/http_foundation/introduction.html#request
  http://symfony.com/doc/3.0/book/controller.html#the-request-object
• The response
  http://symfony.com/doc/3.0/components/http_foundation/introduction.html#response
  http://symfony.com/doc/3.0/book/controller.html#the-response-object
• The cookies
  http://symfony.com/doc/3.0/components/http_foundation/introduction.html#setting-cookies
• The session
  http://symfony.com/doc/3.0/book/controller.html#managing-the-session
  http://symfony.com/doc/3.0/components/http_foundation/sessions.html
• The flash messages
  http://symfony.com/doc/3.0/book/controller.html#flash-messages
  http://symfony.com/doc/3.0/components/http_foundation/sessions.html#flash-messages
• HTTP redirects
  http://symfony.com/doc/3.0/book/controller.html#redirecting
• Internal redirects
  http://symfony.com/doc/3.0/book/controller.html#forwarding-to-another-controller
• Generate 404 pages
  http://symfony.com/doc/3.0/book/controller.html#managing-errors-and-404-pages
  http://symfony.com/doc/3.0/cookbook/controller/error_pages.html#customizing-the-404-page-and-other-error-pages
• File upload
  http://symfony.com/doc/3.0/cookbook/controller/upload_file.html
• Built-in internal controllers
  http://symfony.com/doc/3.0/book/controller.html#the-base-controller-class

---

Routing

• Configuration (YAML / XML / PHP & annotations)
  http://symfony.com/doc/3.0/book/routing.html#basic-route-configuration
• Restrict URL parameters
  http://symfony.com/doc/3.0/book/routing.html#routing-with-placeholders
• Set default values to URL parameters
  http://symfony.com/doc/3.0/book/routing.html#required-and-optional-placeholders
• Generate URL parameters
  http://symfony.com/doc/3.0/book/routing.html#generating-urls
• Trigger redirects
  http://symfony.com/doc/3.0/book/controller.html#redirecting
  http://symfony.com/doc/3.0/cookbook/routing/redirect_in_config.html
• Special internal routing attributes
  http://symfony.com/doc/3.0/cookbook/routing/extra_information.html
• Domain name matching
  http://symfony.com/doc/3.0/components/routing/hostname_pattern.html
• Conditional request matching
  http://symfony.com/doc/3.0/book/routing.html#completely-customized-route-matching-with-conditions
• HTTP methods matching
  http://symfony.com/doc/3.0/cookbook/routing/method_parameters.html
• User's locale guessing
  http://symfony.com/doc/3.0/reference/forms/types/locale.html
• Router debugging
  http://symfony.com/doc/3.0/book/routing.html#visualizing-debugging-routes

---

Templating with Twig

• Auto escaping
  http://twig.sensiolabs.org/doc/tags/autoescape.html
  http://symfony.com/doc/3.0/book/templating.html#output-escaping-in-twig
• Template inheritance
  http://twig.sensiolabs.org/doc/tags/extends.html
  http://twig.sensiolabs.org/doc/templates.html#template-inheritance
  http://symfony.com/doc/3.0/book/templating.html#template-inheritance-and-layouts
• Global variables
  http://symfony.com/doc/3.0/cookbook/templating/global_variables.html
• Filters and functions
  http://twig.sensiolabs.org/doc/filters/index.html
  http://symfony.com/doc/3.0/cookbook/templating/twig_extension.html
• Template includes
  http://twig.sensiolabs.org/doc/tags/include.html
• Loops and conditions
  http://twig.sensiolabs.org/doc/tags/for.html
  http://twig.sensiolabs.org/doc/tags/if.html
• Urls generation
  http://symfony.com/doc/3.0/book/routing.html#generating-urls-from-a-template
  http://symfony.com/doc/3.0/book/templating.html#linking-to-pages
• Controller rendering
  http://symfony.com/doc/3.0/book/templating.html#embedding-controllers
• Translations and pluralization
  http://symfony.com/doc/3.0/book/translation.html#translations-in-templates
• String interpolation
  http://twig.sensiolabs.org/doc/templates.html#string-interpolation
• Assets management
  http://symfony.com/doc/3.0/best_practices/web-assets.html
• Debugging variables
  http://twig.sensiolabs.org/doc/functions/dump.html

---

Forms

• Forms creation
  http://symfony.com/doc/3.0/book/forms.html#creating-a-simple-form
• Forms handling
  http://symfony.com/doc/3.0/book/forms.html#handling-form-submissions
  http://symfony.com/doc/3.0/best_practices/forms.html#handling-form-submits
• Form types
  http://symfony.com/doc/3.0/book/forms.html#creating-form-classes
  http://symfony.com/doc/3.0/book/forms.html#built-in-field-types
• Forms rendering with Twig
  http://symfony.com/doc/3.0/book/forms.html#rendering-a-form-in-a-template
• Forms theming
  http://symfony.com/doc/3.0/cookbook/form/form_customization.html#what-are-form-themes
  http://symfony.com/doc/3.0/book/forms.html#form-theming
• CSRF protection
  http://symfony.com/doc/3.0/book/forms.html#csrf-protection
• Handling file upload
  http://symfony.com/doc/3.0/cookbook/controller/upload_file.html
  http://symfony.com/doc/3.0/reference/forms/types/file.html
• Built-in form types
  http://symfony.com/doc/3.0/reference/forms/types.html
• Data transformers
  http://symfony.com/doc/3.0/cookbook/form/data_transformers.html
• Form events
  http://symfony.com/doc/3.0/components/form/form_events.html
  http://symfony.com/doc/3.0/cookbook/form/dynamic_form_modification.html
• Form type extensions
  http://symfony.com/doc/3.0/cookbook/form/create_form_type_extension.html

---

Data Validation

• PHP object validation
  http://symfony.com/doc/3.0/book/validation.html#the-basics-of-validation
• Built-in validation constraints
  http://symfony.com/doc/3.0/reference/constraints.html
• Validation scopes
  http://symfony.com/doc/3.0/cookbook/validation/custom_constraint.html#class-constraint-validator
• Validation groups
  http://symfony.com/doc/3.0/book/validation.html#validation-groups
• Group sequence
  http://symfony.com/doc/3.0/book/validation.html#group-sequence
• Custom callback validators
  http://symfony.com/doc/3.0/cookbook/validation/custom_constraint.html
  http://symfony.com/doc/3.0/reference/constraints/Callback.html
  https://knpuniversity.com/screencast/question-answer-day/custom-validation-property-path
• Violations builder
  http://symfony.com/doc/3.0/cookbook/validation/custom_constraint.html#creating-the-validator-itself

---

Dependency Injection

• Service container
  http://symfony.com/doc/3.0/book/service_container.html
• Built-in services
  http://symfony.com/doc/3.0/book/service_container.html#debugging-services
• Configuration parameters
  http://symfony.com/doc/3.0/components/dependency_injection/parameters.html
  http://symfony.com/doc/3.0/components/dependency_injection/introduction.html#setting-up-the-container-with-configuration-files
• Services registration
  http://symfony.com/doc/3.0/book/service_container.html#creating-configuring-services-in-the-container
• Tags
  http://symfony.com/doc/3.0/book/service_container.html#tags
  http://symfony.com/doc/3.0/reference/dic_tags.html
• Semantic configuration
  http://symfony.com/doc/3.0/cookbook/bundles/extension.html
• Factories
  http://symfony.com/doc/3.0/components/dependency_injection/factories.html
• Compiler passes
  http://symfony.com/doc/3.0/cookbook/service_container/compiler_passes.html
  http://symfony.com/doc/3.0/components/dependency_injection/compilation.html
• Services autowiring
  http://symfony.com/doc/3.0/components/dependency_injection/autowiring.html

---

Security

• Authentication
  http://symfony.com/doc/3.0/components/security/authentication.html
  http://symfony.com/doc/3.0/book/security.html#how-security-works-authentication-and-authorization http://symfony.com/doc/3.0/cookbook/security/index.html#authentication-identifying-logging-in-the-user
• Authorization
  http://symfony.com/doc/3.0/components/security/authorization.html
  http://symfony.com/doc/3.0/book/security.html#authorization http://symfony.com/doc/3.0/cookbook/security/index.html#authorization-denying-access
• Configuration
  http://symfony.com/doc/3.0/reference/configuration/security.html
• Providers
  http://symfony.com/doc/3.0/book/security.html#where-do-users-come-from-user-providers
• Firewalls
  http://symfony.com/doc/3.0/book/security.html#firewalls-authentication
  http://symfony.com/doc/3.0/components/security/firewall.html
• Users
  http://symfony.com/doc/3.0/book/security.html#users
• Passwords encoders
  http://symfony.com/doc/3.0/book/security.html#encoding-the-user-s-password
• Roles
  http://symfony.com/doc/3.0/components/security/authorization.html#roles
  http://symfony.com/doc/3.0/book/security.html#roles
• Access Control Rules
  http://symfony.com/doc/3.0/book/security.html#access-control-in-templates
  http://symfony.com/doc/3.0/book/security.html#access-control-in-controllers
• Guard authenticators
  http://symfony.com/doc/3.0/cookbook/security/guard-authentication.html
  https://knpuniversity.com/screencast/guard
• Voters and voting strategies
  http://symfony.com/doc/3.0/components/security/authorization.html
  http://symfony.com/doc/3.0/cookbook/security/voters.html

---

HTTP Caching

• Cache types (browser, proxies and reverse proxies)
  http://symfony.com/doc/3.0/book/http_cache.html#types-of-caches
• Expiration (Expires, Cache-control)
  http://symfony.com/doc/3.0/book/http_cache.html#expiration
• Validation (ETag, Last-Modified)
  http://symfony.com/doc/3.0/book/http_cache.html#validation
• Client side caching
  http://symfony.com/doc/3.0/book/http_cache.html#types-of-caches
• Server side caching
  http://symfony.com/doc/3.0/book/http_cache.html#gateway-caches
• Edge Side Includes
  http://symfony.com/doc/3.0/book/http_cache.html#using-edge-side-includes

---

Console

• Built-in commands
  http://symfony.com/doc/3.0/components/console/usage.html#built-in-commands
• Custom commands
  http://symfony.com/doc/3.0/components/console.html#creating-a-console-application http://symfony.com/doc/3.0/console.html
• Configuration
  http://symfony.com/doc/3.0/console.html#configuring-the-command
• Options and arguments
  http://symfony.com/doc/3.0/console/input.html#using-command-arguments http://symfony.com/doc/3.0/console/input.html#using-command-options http://symfony.com/doc/3.0/components/console/console_arguments.html
• Input and Output objects
  http://symfony.com/doc/3.0/console.html#console-input http://symfony.com/doc/3.0/console.html#executing-the-command
• Built-in helpers
  http://symfony.com/doc/3.0/components/console/helpers/index.html
• Console events
  http://symfony.com/doc/3.0/components/console/events.html
• Verbosity levels
  http://symfony.com/doc/3.0/console/verbosity.html

---

Automated tests

• Unit tests with PHPUnit
  http://symfony.com/doc/3.0/book/testing.html#the-phpunit-testing-framework
• Functional tests with PHPUnit
  http://symfony.com/doc/3.0/book/testing.html#functional-tests
• Client object
  http://symfony.com/doc/3.0/book/testing.html#working-with-the-test-client
• Crawler object
  http://symfony.com/doc/3.0/book/testing.html#the-crawler
• Profile object
  http://symfony.com/doc/3.0/book/testing.html#accessing-the-profiler-data
  http://symfony.com/doc/3.0/cookbook/testing/profiling.html
• Framework objects access
  http://symfony.com/doc/3.0/book/testing.html#accessing-internal-objects
  http://symfony.com/doc/3.0/book/testing.html#accessing-the-container
• Client configuration
  http://symfony.com/doc/3.0/book/testing.html#testing-configuration
• Request and response objects introspection
  http://symfony.com/doc/3.0/book/testing.html#accessing-internal-objects
• PHPUnit bridge
  http://symfony.com/doc/3.0/components/phpunit_bridge.html
• Handling legacy deprecated code
  http://symfony.com/doc/3.0/components/phpunit_bridge.html#mark-tests-as-legacy

---

Miscellaneous

• Error handling
  http://symfony.com/doc/3.0/cookbook/controller/error_pages.html
• Code debugging
  http://symfony.com/doc/3.0/cookbook/debugging.html
• Deployment best practices
  http://symfony.com/doc/3.0/cookbook/deployment/tools.html
• Process
  http://symfony.com/doc/3.0/components/process.html
• Serializer
  http://symfony.com/doc/3.0/serializer.html
  http://symfony.com/doc/3.0/components/serializer.html
• Data collectors
  http://symfony.com/doc/3.0/cookbook/profiler/data_collector.html
• Web Profiler and Web Debug Toolbar
  http://symfony.com/blog/new-in-symfony-2-8-redesigned-web-debug-toolbar
  http://symfony.com/doc/3.0/reference/configuration/web_profiler.html
• Internationalization and localization
  http://symfony.com/doc/3.0/translation.html
  http://symfony.com/doc/3.0/best_practices/i18n.html