Classes, traits, and interfaces - main - 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
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core/
core.api.php, line 1529
| Name | Deprecated | Object type | Namespace | File name | Summary | Direct uses | Use statements | Strings |
|---|---|---|---|---|---|---|---|---|
| LayoutTestThemeHooks | class | Drupal\layout_test\Hook | core/ |
Hook implementations for layout_test. | ||||
| LayoutWithoutLabel | class | Drupal\layout_builder_test\Plugin\Layout | core/ |
Layout plugin without a label configuration. | ||||
| LazyBuilderPlaceholderTest | class | Drupal\KernelTests\Core\Render | core/ |
Tests Fiber suspension within Twig templates during placeholder rendering. | ||||
| LazyBuilders | final class | Drupal\announcements_feed | core/ |
Defines a class for lazy building render arrays. | 2 | |||
| LazyContextRepository | class | Drupal\Core\Plugin\Context | core/ |
Provides a context repository which uses context provider services. | 1 | 2 | ||
| LazyContextRepositoryTest | class | Drupal\Tests\Core\Plugin\Context | core/ |
Tests Drupal\Core\Plugin\Context\LazyContextRepository. | ||||
| LazyPluginCollection | abstract class | Drupal\Component\Plugin | core/ |
Defines an object which stores multiple plugin instances to lazy load them. | 3 | 3 | ||
| LazyPluginCollectionTestBase | abstract class | Drupal\Tests\Core\Plugin | core/ |
Provides a base class for plugin collection tests. | 2 | |||
| LazyRouteCollection | class | Drupal\Core\Routing | core/ |
The lazy route collection. | 1 | |||
| LazyRouteCollectionTest | class | Drupal\Tests\Core\Routing | core/ |
Tests Drupal\Core\Routing\LazyRouteCollection. | ||||
| LazyRouteProviderInstallTest | class | Drupal\FunctionalTests\Routing | core/ |
Tests Lazy Route Provider Install. | ||||
| LazyRouteProviderInstallTestHooks | class | Drupal\lazy_route_provider_install_test\Hook | core/ |
Hook implementations for lazy_route_provider_install_test. | ||||
| LeaveProfileNode | class | Drupal\sdc_other_node_visitor\Twig\Profiler | core/ |
Represents a profile leave node. | 1 | |||
| LegacyFileSystemTest | class | Drupal\KernelTests\Core\File | core/ |
Tests the legacy file system functions. | ||||
| LegacyFrontControllerTest | class | Drupal\FunctionalTests\Bootstrap | core/ |
Tests that front-controllers without symfony/runtime keep working. | ||||
| LegacyHook | class | Drupal\Core\Hook\Attribute | core/ |
Defines a LegacyHook attribute object. | 6 | |||
| LegacyHookTest | class | Drupal\Tests\system\Functional\Extension | core/ |
Tests the LegacyHook attribute. | ||||
| LegacyMimeTypeMapLoadedSubscriber | final class | Drupal\Core\File\EventSubscriber | core/ |
Modifies the MIME type map by calling hook_file_mimetype_mapping_alter(). | ||||
| LegacyMimeTypeTest | class | Drupal\KernelTests\Core\File\MimeType | core/ |
Tests deprecated file features. | ||||
| LegacyModuleImplementsAlter | class | Drupal\Core\Hook\Attribute | core/ |
Prevents procedural hook_module_implements_alter from executing. | 1 | |||
| LegacyRequirementSeverityTest | class | Drupal\KernelTests\Core\Extension | core/ |
Tests the legacy requirements severity deprecations. | ||||
| LegacyRequirementsHook | class | Drupal\Core\Hook\Attribute | core/ |
Prevents procedural requirements hook from executing. | 4 | |||
| LegacySessionTest | class | Drupal\Tests\system\Functional\Session | core/ |
Drupal legacy session handling tests. | ||||
| LegacySessionTestController | class | Drupal\session_test\Controller | core/ |
Controller providing page callbacks for legacy session tests. | ||||
| LegacyStatusReportTest | class | Drupal\KernelTests\Core\Render\Element | core/ |
Tests the status report element legacy methods. | ||||
| LegacyVersionUtility | final class | Drupal\package_manager | core/ |
A utility class for dealing with legacy version numbers. | 1 | |||
| LengthConstraint | class | Drupal\Core\Validation\Plugin\Validation\Constraint | core/ |
Length constraint. | ||||
| LenientConfigSchemaChecker | class | Drupal\Core\Config\Development | core/ |
Listens to the config save event and warns about invalid schema. | 4 | |||
| LibrariesDirectoryFileFinder | class | Drupal\Core\Asset | core/ |
Finds files that are located in the supported 'libraries' directories. | 2 | 2 | ||
| LibrariesDirectoryFileFinderTest | class | Drupal\Tests\Core\Asset | core/ |
Tests Drupal\Core\Asset\LibrariesDirectoryFileFinder. | ||||
| LibraryDefinitionMissingLicenseException | class | Drupal\Core\Asset\Exception | core/ |
Defines a custom exception if a library has a remote but no license. | 2 | |||
| LibraryDependencyResolver | class | Drupal\Core\Asset | core/ |
Resolves the dependencies of asset (CSS/JavaScript) libraries. | 3 | 2 | ||
| LibraryDependencyResolverInterface | interface | Drupal\Core\Asset | core/ |
Resolves the dependencies of asset (CSS/JavaScript) libraries. | 1 | 3 | ||
| LibraryDependencyResolverTest | class | Drupal\Tests\Core\Asset | core/ |
Tests Drupal\Core\Asset\LibraryDependencyResolver. | ||||
| LibraryDiscovery | in drupal:11.1.0 and is removed from drupal:12.0.0. Use \Drupal\Core\Asset\LibraryDiscoveryCollector instead. |
class | Drupal\Core\Asset | core/ |
Discovers available asset libraries in Drupal. | |||
| LibraryDiscoveryCollector | class | Drupal\Core\Asset | core/ |
A CacheCollector implementation for building library extension info. | 4 | 2 | ||
| LibraryDiscoveryCollectorTest | class | Drupal\Tests\Core\Asset | core/ |
Tests Drupal\Core\Asset\LibraryDiscoveryCollector. | ||||
| LibraryDiscoveryIntegrationTest | class | Drupal\KernelTests\Core\Asset | core/ |
Tests the library discovery and library discovery parser. | ||||
| LibraryDiscoveryInterface | interface | Drupal\Core\Asset | core/ |
Discovers information for asset (CSS/JavaScript) libraries. | 2 | 2 | ||
| LibraryDiscoveryParser | class | Drupal\Core\Asset | core/ |
Parses library files to get extension data. | 1 | 2 | 2 | |
| LibraryDiscoveryParserTest | class | Drupal\Tests\Core\Asset | core/ |
Tests Drupal\Core\Asset\LibraryDiscoveryParser. | ||||
| LibraryDiscoveryTest | class | Drupal\Tests\Core\Asset | core/ |
Tests Drupal\Core\Asset\LibraryDiscoveryCollector. | ||||
| LinearHistory | final class | Drupal\Core\Config\Checkpoint | core/ |
A chronological list of Checkpoint objects. | 2 | 2 | ||
| LinearHistoryTest | class | Drupal\Tests\Core\Config\Checkpoint | core/ |
Tests Drupal\Core\Config\Checkpoint\LinearHistory. | ||||
| Link | class | Drupal\Core\Render\Element | core/ |
Provides a link render element. | 2 | 3 | ||
| Link | class | Drupal\Core | core/ |
Defines an object that holds information about a link. | 87 | |||
| Link | final class | Drupal\jsonapi\JsonApiResource | core/ |
Represents an RFC8288 based link. | 7 | |||
| LinkAccessConstraint | class | Drupal\link\Plugin\Validation\Constraint | core/ |
Defines an access validation constraint for links. | 1 | |||
| LinkAccessConstraintValidator | class | Drupal\link\Plugin\Validation\Constraint | core/ |
Validates the LinkAccess constraint. | 1 | |||
| LinkAccessConstraintValidatorTest | class | Drupal\Tests\link\Unit\Plugin\Validation\Constraint | core/ |
Tests the LinkAccessConstraintValidator validator. |
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