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
IndexTidDepth class Drupal\taxonomy\Plugin\views\argument core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepth.php Argument handler for taxonomy terms with depth.
IndexTidDepthModifier class Drupal\taxonomy\Plugin\views\argument core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepthModifier.php Argument handler for to modify depth for a previous term.
InfoAlterTest class Drupal\Tests\system\Kernel\System core/modules/system/tests/src/Kernel/System/InfoAlterTest.php Tests the effectiveness of hook_system_info_alter().
InfoHookDecorator class Drupal\Core\Plugin\Discovery core/lib/Drupal/Core/Plugin/Discovery/InfoHookDecorator.php Allows info hook implementations to enhance discovered plugin definitions. 1
InfoParser class Drupal\Core\Extension core/lib/Drupal/Core/Extension/InfoParser.php Parses extension .info.yml files. 3 2
InfoParserDynamic class Drupal\Core\Extension core/lib/Drupal/Core/Extension/InfoParserDynamic.php Parses dynamic .info.yml files that might change during the page request. 1 1
InfoParserException class Drupal\Core\Extension core/lib/Drupal/Core/Extension/InfoParserException.php An exception thrown by the InfoParser class whilst parsing info.yml files. 3
InfoParserInterface interface Drupal\Core\Extension core/lib/Drupal/Core/Extension/InfoParserInterface.php Interface for classes that parses Drupal's info.yml files. 1 2
InfoParserUnitTest class Drupal\Tests\Core\Extension core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php Tests InfoParser class and exception.
InfoWriterTrait trait Drupal\TestTools\Extension core/tests/Drupal/TestTools/Extension/InfoWriterTrait.php Writes the info file and ensures the mtime changes. 3
InheritedContextDefinition class Drupal\Tests\Core\Plugin\Fixtures core/tests/Drupal/Tests/Core/Plugin/Fixtures/InheritedContextDefinition.php Inherited class used for testing. 1
InitialStateTest class Drupal\Tests\content_moderation\Kernel core/modules/content_moderation/tests/src/Kernel/InitialStateTest.php Tests the correct initial states are set on install.
InjectedService class Drupal\new_dependency_test core/modules/system/tests/modules/new_dependency_test/src/InjectedService.php Generic service with a dependency on a service defined in a new module. 2
InlineBlock class Drupal\layout_builder\Plugin\Block core/modules/layout_builder/src/Plugin/Block/InlineBlock.php Defines an inline block plugin type. 1
InlineBlockDeriver class Drupal\layout_builder\Plugin\Derivative core/modules/layout_builder/src/Plugin/Derivative/InlineBlockDeriver.php Provides inline block plugin definitions for all block types. 1
InlineBlockEntityOperations class Drupal\layout_builder core/modules/layout_builder/src/InlineBlockEntityOperations.php Defines a class for reacting to entity events related to Inline Blocks. 2
InlineBlockEntityOperationsTest class Drupal\Tests\layout_builder\Unit core/modules/layout_builder/tests/src/Unit/InlineBlockEntityOperationsTest.php Tests Drupal\layout_builder\InlineBlockEntityOperations.
InlineBlockPrivateFilesTest class Drupal\Tests\layout_builder\FunctionalJavascript core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockPrivateFilesTest.php Test access to private files in block fields on the Layout Builder.
InlineBlockTest class Drupal\Tests\layout_builder\FunctionalJavascript core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php Tests that the inline block feature works correctly.
InlineBlockTestBase abstract class Drupal\Tests\layout_builder\FunctionalJavascript core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTestBase.php Base class for testing inline blocks. 3 1
InlineBlockUsage class Drupal\layout_builder core/modules/layout_builder/src/InlineBlockUsage.php Service class to track inline block usage. 1 2
InlineBlockUsageInterface interface Drupal\layout_builder core/modules/layout_builder/src/InlineBlockUsageInterface.php Defines an interface for tracking inline block usage. 1 3
InlineBlockUsageTest class Drupal\Tests\layout_builder\Unit core/modules/layout_builder/tests/src/Unit/InlineBlockUsageTest.php Tests Drupal\layout_builder\InlineBlockUsage.
InlineBlockUsageTest class Drupal\Tests\layout_builder\Kernel core/modules/layout_builder/tests/src/Kernel/InlineBlockUsageTest.php Class for testing the InlineBlockUsage service.
InlineFormErrorsHooks class Drupal\inline_form_errors\Hook core/modules/inline_form_errors/src/Hook/InlineFormErrorsHooks.php Hook implementations for inline_form_errors.
InlineFormErrorsServiceProvider class Drupal\inline_form_errors core/modules/inline_form_errors/src/InlineFormErrorsServiceProvider.php Overrides the form_error_handler service to enable inline form errors.
InlineFormErrorsThemeHooks class Drupal\inline_form_errors\Hook core/modules/inline_form_errors/src/Hook/InlineFormErrorsThemeHooks.php Hook implementations for inline_form_errors.
InlineTemplate class Drupal\Core\Render\Element core/lib/Drupal/Core/Render/Element/InlineTemplate.php Provides a render element where the user supplies an in-line Twig template.
InOperator class Drupal\views\Plugin\views\filter core/modules/views/src/Plugin/views/filter/InOperator.php Filter to handle matching of multiple options selectable via checkboxes. 8 7
InOperatorTest class Drupal\Tests\views\Unit\Plugin\filter core/modules/views/tests/src/Unit/Plugin/filter/InOperatorTest.php Tests Drupal\views\Plugin\views\filter\InOperator.
InputCollectorInterface interface Drupal\Core\Recipe core/lib/Drupal/Core/Recipe/InputCollectorInterface.php The interface for classes collecting input values for recipes. 1 1
InputConfigurator final class Drupal\Core\Recipe core/lib/Drupal/Core/Recipe/InputConfigurator.php Collects and validates input values for a recipe.
InputRequired class Drupal\views\Plugin\views\exposed_form core/modules/views/src/Plugin/views/exposed_form/InputRequired.php Exposed form plugin that provides an exposed form with required input.
InputStreamFileWriter class Drupal\file\Upload core/modules/file/src/Upload/InputStreamFileWriter.php Writes files from a input stream to a temporary file. 2
InputStreamFileWriterInterface interface Drupal\file\Upload core/modules/file/src/Upload/InputStreamFileWriterInterface.php Uploads files from a stream. 1 2
InputStreamUploadedFile final class Drupal\file\Upload core/modules/file/src/Upload/InputStreamUploadedFile.php An uploaded file from an input stream. 2
InputTest class Drupal\KernelTests\Core\Recipe core/tests/Drupal/KernelTests/Core/Recipe/InputTest.php Tests Input.
Insecure class Drupal\editor_test\EditorXssFilter core/modules/editor/tests/modules/editor_test/src/EditorXssFilter/Insecure.php Defines an insecure text editor XSS filter (for testing purposes).
Insert class Drupal\pgsql\Driver\Database\pgsql core/modules/pgsql/src/Driver/Database/pgsql/Insert.php PostgreSQL implementation of \Drupal\Core\Database\Query\Insert.
Insert class Drupal\core_fake\Driver\Database\CoreFakeWithAllCustomClasses core/tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFakeWithAllCustomClasses/Insert.php CoreFakeWithAllCustomClasses implementation of \Drupal\Core\Database\Insert.
Insert class Drupal\sqlite\Driver\Database\sqlite core/modules/sqlite/src/Driver/Database/sqlite/Insert.php SQLite implementation of \Drupal\Core\Database\Query\Insert.
Insert class Drupal\mysql\Driver\Database\mysql core/modules/mysql/src/Driver/Database/mysql/Insert.php MySQL implementation of \Drupal\Core\Database\Query\Insert.
Insert class Drupal\Core\Database\Query core/lib/Drupal/Core/Database/Query/Insert.php General class for an abstracted INSERT query. 4 6
InsertCommand class Drupal\Core\Ajax core/lib/Drupal/Core/Ajax/InsertCommand.php Generic AJAX command for inserting content. 6 7
InsertDefaultsTest class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/InsertDefaultsTest.php Tests the Insert query builder with default values.
InsertLobTest class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/InsertLobTest.php Tests the Insert query builder with LOB fields.
InsertTest class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/InsertTest.php Tests the insert builder.
InsertTrait trait Drupal\Core\Database\Query core/lib/Drupal/Core/Database/Query/InsertTrait.php Provides common functionality for INSERT and UPSERT queries.
InspectionTest class Drupal\KernelTests\Core\Plugin core/tests/Drupal/KernelTests/Core/Plugin/InspectionTest.php Tests that plugins implementing PluginInspectionInterface can be inspected.
Inspector class Drupal\Component\Assertion core/lib/Drupal/Component/Assertion/Inspector.php Generic inspections for the assert() statement. 38

Other projects

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