Classes, traits, and interfaces - 11.x - drupal

Introduction to classes

A lot of the PHP code in Drupal is object oriented (OO), making use of PHP classes, interfaces, and traits. See the Objected-oriented programming conventions for more information.

See also

Objected-oriented programming conventions

File

core/core.api.php, line 1519

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
BlockFormInBlockTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockFormInBlockTest.php	Tests form in block caching.
BlockFormMessagesTest		class	Drupal\Tests\layout_builder\FunctionalJavascript	core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFormMessagesTest.php	Tests that messages appear in the off-canvas dialog with configuring blocks.
BlockFormTest		class	Drupal\Tests\block\Unit	core/modules/block/tests/src/Unit/BlockFormTest.php	Tests Drupal\block\BlockForm.
BlockHasOverridesAccessCheck		class	Drupal\settings_tray\Access	core/modules/settings_tray/src/Access/BlockHasOverridesAccessCheck.php	Determines whether the requested block has a 'settings_tray' form.			2
BlockHiddenRegionTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockHiddenRegionTest.php	Tests that blocks are not added to hidden regions on theme installation.
BlockHookOperationTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockHookOperationTest.php	Tests for Block module regarding hook_entity_operations_alter().
BlockHooks		class	Drupal\block\Hook	core/modules/block/src/Hook/BlockHooks.php	Hook implementations for block.		7
BlockHtmlTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockHtmlTest.php	Tests block HTML ID validity.
BlockInstallTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockInstallTest.php	Tests block module's installation.
BlockInterface		interface	Drupal\block	core/modules/block/src/BlockInterface.php	Provides an interface defining a block entity.	1	19
BlockInterfaceTest		class	Drupal\Tests\block\Kernel	core/modules/block/tests/src/Kernel/BlockInterfaceTest.php	Tests that the block plugin can work properly without a supporting entity.
BlockInvalidRegionTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockInvalidRegionTest.php	Tests that blocks assigned to invalid regions are disabled with a warning.
BlockItemsPerPageUpdateTest		final class	Drupal\Tests\views\Functional\Update	core/modules/views/tests/src/Functional/Update/BlockItemsPerPageUpdateTest.php	Tests Block Items Per Page Update.
BlockJsonAnonTest		class	Drupal\Tests\block\Functional\Rest	core/modules/block/tests/src/Functional/Rest/BlockJsonAnonTest.php	Tests Block Json Anon.
BlockJsonBasicAuthTest		class	Drupal\Tests\block\Functional\Rest	core/modules/block/tests/src/Functional/Rest/BlockJsonBasicAuthTest.php	Tests Block Json Basic Auth.
BlockJsonCookieTest		class	Drupal\Tests\block\Functional\Rest	core/modules/block/tests/src/Functional/Rest/BlockJsonCookieTest.php	Tests Block Json Cookie.
BlockLanguageCacheTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockLanguageCacheTest.php	Tests display of menu blocks with multiple languages.
BlockLanguageTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockLanguageTest.php	Tests per-language block configuration.
BlockLibraryController		class	Drupal\block\Controller	core/modules/block/src/Controller/BlockLibraryController.php	Provides a list of block plugins to be added to the layout.
BlockListBuilder		class	Drupal\block	core/modules/block/src/BlockListBuilder.php	Defines a class to build a listing of block entities.		1
BlockListController		class	Drupal\block\Controller	core/modules/block/src/Controller/BlockListController.php	Defines a controller to list blocks.
BlockLocalTasksTest		class	Drupal\Tests\block\Unit\Menu	core/modules/block/tests/src/Unit/Menu/BlockLocalTasksTest.php	Tests block local tasks.
BlockManager		class	Drupal\Core\Block	core/lib/Drupal/Core/Block/BlockManager.php	Manages discovery and instantiation of block plugins.		1	2
BlockManagerInterface		interface	Drupal\Core\Block	core/lib/Drupal/Core/Block/BlockManagerInterface.php	Provides an interface for the discovery and instantiation of block plugins.	1	13
BlockManagerTest		class	Drupal\Tests\Core\Block	core/tests/Drupal/Tests/Core/Block/BlockManagerTest.php	Tests Drupal\Core\Block\BlockManager.
BlockPageDisplayVariantSubscriber		class	Drupal\block\EventSubscriber	core/modules/block/src/EventSubscriber/BlockPageDisplayVariantSubscriber.php	Selects the block page display variant.			2
BlockPageVariant		class	Drupal\block\Plugin\DisplayVariant	core/modules/block/src/Plugin/DisplayVariant/BlockPageVariant.php	Provides a page display variant that decorates the main content with blocks.		1
BlockPageVariantTest		class	Drupal\Tests\block\Unit\Plugin\DisplayVariant	core/modules/block/tests/src/Unit/Plugin/DisplayVariant/BlockPageVariantTest.php	Tests Drupal\block\Plugin\DisplayVariant\BlockPageVariant.
BlockPluginCollection		class	Drupal\block	core/modules/block/src/BlockPluginCollection.php	Provides a collection of block plugins.		1
BlockPluginHasSettingsTrayFormAccessCheck		class	Drupal\settings_tray\Access	core/modules/settings_tray/src/Access/BlockPluginHasSettingsTrayFormAccessCheck.php	Determines whether the requested block has a 'settings_tray' form.		1	2
BlockPluginHasSettingsTrayFormAccessCheckTest		class	Drupal\Tests\settings_tray\Unit\Access	core/modules/settings_tray/tests/src/Unit/Access/BlockPluginHasSettingsTrayFormAccessCheckTest.php	Tests Drupal\settings_tray\Access\BlockPluginHasSettingsTrayFormAccessCheck.
BlockPluginId		class	Drupal\block\Plugin\migrate\process	core/modules/block/src/Plugin/migrate/process/BlockPluginId.php	Determines the block plugin ID.
BlockPluginInterface		interface	Drupal\Core\Block	core/lib/Drupal/Core/Block/BlockPluginInterface.php	Defines the required interface for all block plugins.	6	23	1
BlockPluginTrait		trait	Drupal\Core\Block	core/lib/Drupal/Core/Block/BlockPluginTrait.php	Provides the base implementation of a block plugin.		1
BlockRebuildTest		class	Drupal\Tests\block\Kernel	core/modules/block/tests/src/Kernel/BlockRebuildTest.php	Tests block_rebuild().
BlockRegion		class	Drupal\block\Plugin\migrate\process	core/modules/block/src/Plugin/migrate/process/BlockRegion.php	Determines the region for a block.		1
BlockRegionTest		class	Drupal\Tests\block\Unit\Plugin\migrate\process	core/modules/block/tests/src/Unit/Plugin/migrate/process/BlockRegionTest.php	Tests Drupal\block\Plugin\migrate\process\BlockRegion.
BlockRenderAlterContent		class	Drupal\block_test	core/modules/block/tests/modules/block_test/src/BlockRenderAlterContent.php	Implements a trusted preRender callback.
BlockRenderOrderTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockRenderOrderTest.php	Tests blocks are being rendered in order by weight.
BlockRepository		class	Drupal\block	core/modules/block/src/BlockRepository.php	Provides a repository for Block config entities.		2	2
BlockRepositoryInterface		interface	Drupal\block	core/modules/block/src/BlockRepositoryInterface.php	Provides an interface for the block repository.	1	1
BlockRepositoryTest		class	Drupal\Tests\block\Unit	core/modules/block/tests/src/Unit/BlockRepositoryTest.php	Tests Drupal\block\BlockRepository.
BlockResourceTestBase		abstract class	Drupal\Tests\block\Functional\Rest	core/modules/block/tests/src/Functional/Rest/BlockResourceTestBase.php	Resource test base for the block entity.	6
BlockSettings		class	Drupal\block\Plugin\migrate\process	core/modules/block/src/Plugin/migrate/process/BlockSettings.php	Determines the block settings.		1
BlockSettingsTest		class	Drupal\Tests\block\Unit\Plugin\migrate\process	core/modules/block/tests/src/Unit/Plugin/migrate/process/BlockSettingsTest.php	Tests Drupal\block\Plugin\migrate\process\BlockSettings.
BlockStorageUnitTest		class	Drupal\Tests\block\Kernel	core/modules/block/tests/src/Kernel/BlockStorageUnitTest.php	Tests the storage of blocks.
BlockSystemBrandingTest		class	Drupal\Tests\block\Functional	core/modules/block/tests/src/Functional/BlockSystemBrandingTest.php	Tests branding block display.
BlockTemplateSuggestionsTest		class	Drupal\Tests\block\Kernel	core/modules/block/tests/src/Kernel/BlockTemplateSuggestionsTest.php	Tests the block theme suggestions.
BlockTemplateSuggestionsTest		class	Drupal\Tests\block_content\Kernel	core/modules/block_content/tests/src/Kernel/BlockTemplateSuggestionsTest.php	Tests the block_content_theme_suggestions_block() function.
BlockTest		class	Drupal\Tests\views\Unit\Plugin\views\display	core/modules/views/tests/src/Unit/Plugin/views/display/BlockTest.php	Tests Drupal\views\Plugin\views\display\Block.

Other projects

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.