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

core/core.api.php, line 1529

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
SelectExtenderTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/SelectExtenderTest.php	Tests the Select query extender classes.
SelectGetRangeTest		final class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/SelectGetRangeTest.php	Tests SelectInterface::getRange().
SelectInterface		interface	Drupal\Core\Database\Query	core/lib/Drupal/Core/Database/Query/SelectInterface.php	Interface definition for a Select Query object.	2	31
SelectionInterface		interface	Drupal\Core\Entity\EntityReferenceSelection	core/lib/Drupal/Core/Entity/EntityReferenceSelection/SelectionInterface.php	Interface definition for Entity Reference Selection plugins.	1	3	2
SelectionPluginBase		abstract class	Drupal\Core\Entity\EntityReferenceSelection	core/lib/Drupal/Core/Entity/EntityReferenceSelection/SelectionPluginBase.php	Provides a base class for configurable selection handlers.	3	3
SelectionPluginManager		class	Drupal\Core\Entity\EntityReferenceSelection	core/lib/Drupal/Core/Entity/EntityReferenceSelection/SelectionPluginManager.php	Plugin type manager for Entity Reference Selection plugins.			2
SelectionPluginManagerInterface		interface	Drupal\Core\Entity\EntityReferenceSelection	core/lib/Drupal/Core/Entity/EntityReferenceSelection/SelectionPluginManagerInterface.php	Defines an interface for the entity reference selection plugin manager.	1	5
SelectionTest		class	Drupal\Tests\field\Kernel\EntityReference\Views	core/modules/field/tests/src/Kernel/EntityReference/Views/SelectionTest.php	Tests entity reference selection handler.
SelectionTest		class	Drupal\Tests\field\Functional\EntityReference\Views	core/modules/field/tests/src/Functional/EntityReference/Views/SelectionTest.php	Tests entity reference selection handler.
SelectionWithAutocreateInterface		interface	Drupal\Core\Entity\EntityReferenceSelection	core/lib/Drupal/Core/Entity/EntityReferenceSelection/SelectionWithAutocreateInterface.php	Interface for Selection plugins that support newly created entities.	1	3
SelectLanguageForm		class	Drupal\Core\Installer\Form	core/lib/Drupal/Core/Installer/Form/SelectLanguageForm.php	Provides the language selection form.
SelectLeastTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/SelectLeastTest.php	Tests the SQL LEAST operator.
SelectOrderedTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/SelectOrderedTest.php	Tests the Select query builder.
SelectPagerDefaultTest		class	Drupal\Tests\system\Functional\Database	core/modules/system/tests/src/Functional/Database/SelectPagerDefaultTest.php	Tests the pager query select extender.
SelectProfileForm		class	Drupal\Core\Installer\Form	core/lib/Drupal/Core/Installer/Form/SelectProfileForm.php	Provides the profile selection form.		2
SelectSubqueryTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/SelectSubqueryTest.php	Tests the Select query builder.
SelectTableSortDefaultTest		class	Drupal\Tests\system\Functional\Database	core/modules/system/tests/src/Functional/Database/SelectTableSortDefaultTest.php	Tests the tablesort query extender.
SelectTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/SelectTest.php	Tests the Select query builder.
SemanticVersion		class	Drupal\Composer\Util	composer/Util/SemanticVersion.php	Utility methods for manipulating semantic versions.		1
SemVer		final class	Drupal\Composer\Plugin\RecipeUnpack	composer/Plugin/RecipeUnpack/SemVer.php	Helper class to manipulate semantic versioning constraints.		1
SemVerTest		class	Drupal\Tests\Composer\Plugin\Unpack	core/tests/Drupal/Tests/Composer/Plugin/Unpack/SemVerTest.php	Tests Drupal\Composer\Plugin\RecipeUnpack\SemVer.
SendmailCommandValidationTransportFactory		class	Drupal\Core\Mailer\Transport	core/lib/Drupal/Core/Mailer/Transport/SendmailCommandValidationTransportFactory.php	Command validation decorator for sendmail transport factory.
SeparatorTranslationTest		class	Drupal\Tests\datetime_range\Kernel	core/modules/datetime_range/tests/src/Kernel/SeparatorTranslationTest.php	Test to ensure the datetime range separator is translatable.
Sequence		class	Drupal\Core\Config\Schema	core/lib/Drupal/Core/Config/Schema/Sequence.php	Defines a configuration element of type Sequence.		2	1
SequenceDataDefinition		class	Drupal\Core\Config\Schema	core/lib/Drupal/Core/Config/Schema/SequenceDataDefinition.php	A typed data definition class for defining sequences in configuration.		4	1
SequencesTableRemovalUpdateTest		class	Drupal\Tests\system\Functional\Update	core/modules/system/tests/src/Functional/Update/SequencesTableRemovalUpdateTest.php	Tests the upgrade path for removing the sequences table.
SequentiallyConstraint		class	Drupal\Core\Validation\Plugin\Validation\Constraint	core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/SequentiallyConstraint.php	Checks constraints sequentially and shows the error from the first.		1
SequentiallyConstraintValidatorTest		class	Drupal\KernelTests\Core\Validation	core/tests/Drupal/KernelTests/Core/Validation/SequentiallyConstraintValidatorTest.php	Tests Sequentially validation constraint with both valid and invalid values.
SerializationHooks		class	Drupal\serialization\Hook	core/modules/serialization/src/Hook/SerializationHooks.php	Hook implementations for serialization.
SerializationInterface		interface	Drupal\Component\Serialization	core/lib/Drupal/Component/Serialization/SerializationInterface.php	Defines an interface for serialization formats.	4	5
SerializationServiceProvider		class	Drupal\serialization	core/modules/serialization/src/SerializationServiceProvider.php	Serialization dependency injection container.
SerializationTest		class	Drupal\Tests\serialization\Kernel	core/modules/serialization/tests/src/Kernel/SerializationTest.php	Functional tests for serialization system.
SerializationTestEncoder		class	Drupal\serialization_test	core/modules/serialization/tests/serialization_test/src/SerializationTestEncoder.php	Serialization encoder used for testing.			2
SerializationTestNormalizer		class	Drupal\serialization_test	core/modules/serialization/tests/serialization_test/src/SerializationTestNormalizer.php	Serialization normalizer used for testing.			2
Serialized		class	Drupal\views\Plugin\views\field	core/modules/views/src/Plugin/views/field/Serialized.php	Field handler to show data of serialized fields.
SerializedColumnNormalizerTrait		trait	Drupal\serialization\Normalizer	core/modules/serialization/src/Normalizer/SerializedColumnNormalizerTrait.php	A trait providing methods for serialized columns.		1
SerializedConstraint		class	Drupal\Core\Validation\Plugin\Validation\Constraint	core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/SerializedConstraint.php	Checks for valid serialized data.		1
SerializedConstraintValidator		class	Drupal\Core\Validation\Plugin\Validation\Constraint	core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/SerializedConstraintValidator.php	Validates the Serialized constraint.		1
SerializedConstraintValidatorTest		class	Drupal\Tests\Core\Validation\Plugin\Validation\Constraint	core/tests/Drupal/Tests/Core/Validation/Plugin/Validation/Constraint/SerializedConstraintValidatorTest.php	Tests serialize validator.
SerializedItem		class	Drupal\entity_test\Plugin\Field\FieldType	core/modules/system/tests/modules/entity_test/src/Plugin/Field/FieldType/SerializedItem.php	Defines the 'serialized_item' entity field type.	1
SerializedPropertyItem		class	Drupal\entity_test\Plugin\Field\FieldType	core/modules/system/tests/modules/entity_test/src/Plugin/Field/FieldType/SerializedPropertyItem.php	Defines the 'serialized_property_item_test' entity field type.
SerializeQueryTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/SerializeQueryTest.php	Tests serializing and unserializing a query.
Serializer		class	Drupal\serialization\Serializer	core/modules/serialization/src/Serializer/Serializer.php	Serializer with JSON Schema generation convenience methods.			2
Serializer		class	Drupal\rest\Plugin\views\style	core/modules/rest/src/Plugin/views/style/Serializer.php	The style plugin for serialized output formats.		2
Serializer		final class	Drupal\jsonapi\Serializer	core/modules/jsonapi/src/Serializer/Serializer.php	Overrides the Symfony serializer to cordon off our incompatible normalizers.		2	2
SerializeResponseTest		class	Drupal\Tests\big_pipe\Kernel	core/modules/big_pipe/tests/src/Kernel/SerializeResponseTest.php	Tests that big_pipe responses can be serialized.
SerializerTest		class	Drupal\Tests\jsonapi\Kernel\Serializer	core/modules/jsonapi/tests/src/Kernel/Serializer/SerializerTest.php	Tests the JSON:API serializer.
SerializerTest		class	Drupal\Tests\rest\Unit\Plugin\views\style	core/modules/rest/tests/src/Unit/Plugin/views/style/SerializerTest.php	Tests Drupal\rest\Plugin\views\style\Serializer.
ServerCommand		class	Drupal\Core\Command	core/lib/Drupal/Core/Command/ServerCommand.php	Runs the PHP webserver for a Drupal site for local testing/development.
ServerEndpointController		final class	Drupal\sdc_test\Controller	core/modules/system/tests/modules/sdc_test/src/Controller/ServerEndpointController.php	An endpoint to serve a component during tests.

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