Classes, traits, and interfaces - 8.9.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 1511

Name Deprecated Object type Namespace File name Summary Direct uses Use statements Strings
FilterOptionsTest class Drupal\Tests\views_ui\FunctionalJavascript core/modules/views_ui/tests/src/FunctionalJavascript/FilterOptionsTest.php Tests the JavaScript filtering of options in add handler form.
FilterPermissions class Drupal\filter core/modules/filter/src/FilterPermissions.php Provides dynamic permissions of the filter module.
FilterPermissionUiTest class Drupal\Tests\user\Functional\Views core/modules/user/tests/src/Functional/Views/FilterPermissionUiTest.php Tests the permission field handler ui.
FilterPlaceholderTextTest class Drupal\Tests\views\Functional\Handler core/modules/views/tests/src/Functional/Handler/FilterPlaceholderTextTest.php Tests the placeholder text on the appropriate filter handlers.
FilterPluginBase abstract class Drupal\views\Plugin\views\filter core/modules/views/src/Plugin/views/filter/FilterPluginBase.php Base class for Views filters handler plugins. 18 9
FilterPluginCollection class Drupal\filter core/modules/filter/src/FilterPluginCollection.php A collection of filters. 5
FilterPluginManager class Drupal\filter core/modules/filter/src/FilterPluginManager.php Manages text processing filters. 1 2
FilterProcessResult class Drupal\filter core/modules/filter/src/FilterProcessResult.php Used to return values from a text filter plugin's processing method. 23
FilterSecurityTest class Drupal\Tests\filter\Functional core/modules/filter/tests/src/Functional/FilterSecurityTest.php Tests the behavior of check_markup() when a filter or text format vanishes, or when check_markup() is called in such a way that it is instructed to skip all filters of the "FilterInterface::TYPE_HTML_RESTRICTOR" type.
FilterSettings class Drupal\filter\Plugin\migrate\process core/modules/filter/src/Plugin/migrate/process/FilterSettings.php Adds the default allowed attributes to filter_html's allowed_html setting. 1
FilterSettingsTest class Drupal\Tests\filter\Kernel\Plugin\migrate\process core/modules/filter/tests/src/Kernel/Plugin/migrate/process/FilterSettingsTest.php Unit tests of the filter_settings plugin.
FilterSparkles class Drupal\filter_test_plugin\Plugin\Filter core/modules/filter/tests/filter_test_plugin/src/Plugin/Filter/FilterSparkles.php Provides a filter to limit allowed HTML tags.
FilterStringTest class Drupal\Tests\views\Kernel\Handler core/modules/views/tests/src/Kernel/Handler/FilterStringTest.php Tests the core Drupal\views\Plugin\views\filter\StringFilter handler.
FilterTest class Drupal\Tests\views\Functional\Plugin core/modules/views/tests/src/Functional/Plugin/FilterTest.php Tests general filter plugin functionality.
FilterTest class Drupal\Tests\jsonapi\Kernel\Query core/modules/jsonapi/tests/src/Kernel/Query/FilterTest.php @coversDefaultClass \Drupal\jsonapi\Query\Filter @group jsonapi @group jsonapi_query
FilterTest class Drupal\views_test_data\Plugin\views\filter core/modules/views/tests/modules/views_test_data/src/Plugin/views/filter/FilterTest.php Plugin annotation @ViewsFilter("test_filter"); 2
FilterTestAssets class Drupal\filter_test\Plugin\Filter core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestAssets.php Provides a test filter to attach assets
FilterTestCacheContexts class Drupal\filter_test\Plugin\Filter core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheContexts.php Provides a test filter to associate cache contexts.
FilterTestCacheMerge class Drupal\filter_test\Plugin\Filter core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheMerge.php Provides a test filter to merge with CacheableMetadata.
FilterTestCacheTags class Drupal\filter_test\Plugin\Filter core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestCacheTags.php Provides a test filter to associate cache tags
FilterTestFormatForm class Drupal\filter_test\Form core/modules/filter/tests/filter_test/src/Form/FilterTestFormatForm.php Shows a test form for testing the 'text_format' form element. 1
FilterTestPlaceholders class Drupal\filter_test\Plugin\Filter core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestPlaceholders.php Provides a test filter to use placeholders.
FilterTestReplace class Drupal\filter_test\Plugin\Filter core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestReplace.php Provides a test filter to replace all content.
FilterTestRestrictTagsAndAttributes class Drupal\filter_test\Plugin\Filter core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestRestrictTagsAndAttributes.php Provides a test filter to restrict HTML tags and attributes.
FilterTestStatic class Drupal\filter_test_plugin\Plugin\Filter core/modules/filter/tests/filter_test_plugin/src/Plugin/Filter/FilterTestStatic.php Provides a filter that returns the same static text.
FilterUidRevisionTest class Drupal\Tests\node\Kernel\Views core/modules/node/tests/src/Kernel/Views/FilterUidRevisionTest.php Tests the node_uid_revision handler.
FilterUITest class Drupal\Tests\views_ui\Functional core/modules/views_ui/tests/src/Functional/FilterUITest.php Tests for the filters from the UI.
FilterUninstallValidator class Drupal\filter\ProxyClass core/modules/filter/src/ProxyClass/FilterUninstallValidator.php Provides a proxy class for \Drupal\filter\FilterUninstallValidator.
FilterUninstallValidator class Drupal\filter core/modules/filter/src/FilterUninstallValidator.php Prevents uninstallation of modules providing used filter plugins. 2
FilterUninstallValidatorTest class Drupal\Tests\filter\Unit core/modules/filter/tests/src/Unit/FilterUninstallValidatorTest.php @coversDefaultClass \Drupal\filter\FilterUninstallValidator @group filter
FilterUrl class Drupal\filter\Plugin\Filter core/modules/filter/src/Plugin/Filter/FilterUrl.php Provides a filter to convert URLs into links.
FinalExceptionSubscriber class Drupal\Core\EventSubscriber core/lib/Drupal/Core/EventSubscriber/FinalExceptionSubscriber.php Last-chance handler for exceptions: the final exception subscriber. 1 1 2
FinalExceptionSubscriberTest class Drupal\Tests\Core\EventSubscriber core/tests/Drupal/Tests/Core/EventSubscriber/FinalExceptionSubscriberTest.php @coversDefaultClass \Drupal\Core\EventSubscriber\FinalExceptionSubscriber @group EventSubscriber
FinalMissingContentSubscriber class Drupal\Core\Config\Importer core/lib/Drupal/Core/Config/Importer/FinalMissingContentSubscriber.php Final event subscriber to the missing content event. 2
FinishResponseSubscriber class Drupal\Core\EventSubscriber core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php Response subscriber to handle finished responses. 2
Fixed class Drupal\views\Plugin\views\argument_default core/modules/views/src/Plugin/views/argument_default/Fixed.php The fixed argument default handler.
FixtureDeprecatedClass class Drupal\deprecation_test\Deprecation core/modules/system/tests/modules/deprecation_test/src/Deprecation/FixtureDeprecatedClass.php Fixture class for use by DrupalStandardsListenerDeprecationTest. 3
Fixtures class Drupal\Tests\Composer\Generator core/tests/Drupal/Tests/Composer/Generator/Fixtures.php Convenience class for creating fixtures.
Fixtures class Drupal\Tests\Composer\Plugin\Scaffold core/tests/Drupal/Tests/Composer/Plugin/Scaffold/Fixtures.php Convenience class for creating fixtures. 8
Flatten class Drupal\migrate\Plugin\migrate\process core/modules/migrate/src/Plugin/migrate/process/Flatten.php Flattens the source value. 1
FlattenTest class Drupal\Tests\migrate\Unit\process core/modules/migrate/tests/src/Unit/process/FlattenTest.php Tests the flatten plugin.
FloatData class Drupal\Core\TypedData\Plugin\DataType core/lib/Drupal/Core/TypedData/Plugin/DataType/FloatData.php The float data type. 1 1
FloatInterface interface Drupal\Core\TypedData\Type core/lib/Drupal/Core/TypedData/Type/FloatInterface.php Interface for floating-point numbers. 1 5
FloatItem class Drupal\Core\Field\Plugin\Field\FieldType core/lib/Drupal/Core/Field/Plugin/Field/FieldType/FloatItem.php Defines the 'float' field type.
FloodInterface interface Drupal\Core\Flood core/lib/Drupal/Core/Flood/FloodInterface.php Defines an interface for flood controllers. 2 6
FloodTest class Drupal\Tests\system\Kernel\System core/modules/system/tests/src/Kernel/System/FloodTest.php Functional tests for the flood control mechanism.
FolderTest class Drupal\FunctionalTests core/tests/Drupal/FunctionalTests/FolderTest.php This test will check BrowserTestBase's treatment of hook_install during setUp. Image module is used for test.
FollowUpMigrationsTest class Drupal\Tests\migrate_drupal\Kernel\d6 core/modules/migrate_drupal/tests/src/Kernel/d6/FollowUpMigrationsTest.php Tests follow-up migrations.
FollowUpMigrationsTest class Drupal\Tests\migrate_drupal\Kernel\d7 core/modules/migrate_drupal/tests/src/Kernel/d7/FollowUpMigrationsTest.php Tests follow-up migrations.
Foo class Drupal\image_test\Plugin\ImageToolkit\Operation\test core/modules/system/tests/modules/image_test/src/Plugin/ImageToolkit/Operation/test/Foo.php Builds an image toolkit operation.

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