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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
| Name | Type | Namespace |
Location |
Description | Direct uses | Use statements | Strings |
|---|---|---|---|---|---|---|---|
| HtmlEscapedText | class |
Drupal\ |
core/ |
Escapes HTML syntax characters to HTML entities for display in markup. | 2 | ||
| MarkupInterface | interface |
Drupal\ |
core/ |
Marks an object's __toString() method as returning markup. | 13 | 36 | |
| MarkupTrait | trait |
Drupal\ |
core/ |
Implements MarkupInterface and Countable for rendered objects. | 8 | ||
| OutputStrategyInterface | interface |
Drupal\ |
core/ |
Provides an output strategy that formats HTML strings for a given context. | 1 | ||
| PlainTextOutput | class |
Drupal\ |
core/ |
Provides an output strategy for transforming HTML into simple plain text. | 12 | ||
| InvalidDataTypeException | class |
Drupal\ |
core/ |
Exception thrown when a data type is invalid. | 1 | 17 | |
| Json | class |
Drupal\ |
core/ |
Default serialization for JSON. | 95 | 3 | |
| ObjectAwareSerializationInterface | interface |
Drupal\ |
core/ |
Ensures that a serializer is usable for serializing PHP objects. | 1 | ||
| PhpSerialize | class |
Drupal\ |
core/ |
Default serialization for serialized PHP. | 3 | 2 | |
| SerializationInterface | interface |
Drupal\ |
core/ |
Defines an interface for serialization formats. | 5 | 3 | |
| Yaml | class |
Drupal\ |
core/ |
Provides a YAML serialization implementation using symfony/yaml. | 10 | 2 | |
| YamlPecl | class |
Drupal\ |
core/ |
Provides default serialization for YAML using the PECL extension. | 1 | ||
| YamlSymfony Deprecated | class |
Drupal\ |
core/ |
Default serialization for YAML using the Symfony component. | |||
| PhpTransliteration | class |
Drupal\ |
core/ |
Implements transliteration without using the PECL extensions. | 1 | 4 | |
| TransliterationInterface | interface |
Drupal\ |
core/ |
Defines an interface for classes providing transliteration. | 1 | 4 | |
| ArgumentsResolver | class |
Drupal\ |
core/ |
Resolves the arguments to pass to a callable. | 3 | ||
| ArgumentsResolverInterface | interface |
Drupal\ |
core/ |
Resolves the arguments to pass to a callable. | 1 | 1 | |
| Color | class |
Drupal\ |
core/ |
Performs color conversions. | 2 | ||
| Crypt | class |
Drupal\ |
core/ |
Utility class for cryptographically-secure string handling routines. | 63 | ||
| DeprecatedArray | class |
Drupal\ |
core/ |
An array that triggers a deprecation warning when accessed. | |||
| DeprecationHelper | final class |
Drupal\ |
core/ |
Provides a helper method for handling deprecated code paths in projects. | |||
| DiffArray | class |
Drupal\ |
core/ |
Provides helpers to perform diffs on multi dimensional arrays. | 3 | ||
| EmailValidator | class |
Drupal\ |
core/ |
Validates email addresses. | 1 | 2 | |
| EmailValidatorInterface | interface |
Drupal\ |
core/ |
Validates email addresses. | 1 | 1 | |
| Environment | class |
Drupal\ |
core/ |
Provides PHP environment helper methods. | 8 | ||
| Html | class |
Drupal\ |
core/ |
Provides DOMDocument helpers for parsing and serializing HTML strings. | 141 | ||
| HtmlSerializerRules | class |
Drupal\ |
core/ |
Drupal-specific HTML5 serializer rules. | |||
| Image | class |
Drupal\ |
core/ |
Provides helpers to operate on images. | 1 | ||
| NestedArray | class |
Drupal\ |
core/ |
Provides helpers to perform operations on nested arrays and array keys of variable depth. | 86 | ||
| Number | class |
Drupal\ |
core/ |
Provides helper methods for manipulating numbers. | 3 | ||
| OpCodeCache | class |
Drupal\ |
core/ |
Provides helpers to handle PHP opcode caches. | 1 | ||
| Rectangle | class |
Drupal\ |
core/ |
Rectangle rotation algebra class. | 1 | ||
| Reflection | final class |
Drupal\ |
core/ |
Provides helper methods for reflection. | 2 | ||
| SortArray | class |
Drupal\ |
core/ |
Provides generic array sorting helper methods. | 5 | ||
| Tags | class |
Drupal\ |
core/ |
Defines a class that can explode and implode tags. | 7 | ||
| Timer | class |
Drupal\ |
core/ |
Provides helpers to use timers throughout a request. | 3 | ||
| ToStringTrait | trait |
Drupal\ |
core/ |
Wraps __toString in a trait to avoid some fatal errors. | 2 | ||
| Unicode | class |
Drupal\ |
core/ |
Provides Unicode-related conversions and operations. | 33 | ||
| UrlHelper | class |
Drupal\ |
core/ |
Helper class URL based methods. | 59 | ||
| UserAgent | class |
Drupal\ |
core/ |
Provides user agent related utility functions. | 2 | ||
| Variable | class |
Drupal\ |
core/ |
Provides helpers for dealing with variables. | 8 | ||
| Xss | class |
Drupal\ |
core/ |
Provides helper to filter for cross-site scripting. | 1 | 30 | |
| Com | class |
Drupal\ |
core/ |
Generates a UUID using the Windows internal GUID extension. | 1 | ||
| Pecl | class |
Drupal\ |
core/ |
Generates a UUID using the PECL extension. | 1 | ||
| Php | class |
Drupal\ |
core/ |
Generates a UUID v4 (RFC 4122 section 4.4) using PHP code. | 4 | 2 | |
| Uuid | class |
Drupal\ |
core/ |
UUID Helper methods. | 6 | ||
| UuidInterface | interface |
Drupal\ |
core/ |
Interface for generating UUIDs. | 3 | 11 | |
| Constraint | class |
Drupal\ |
core/ |
A value object representing a Drupal version constraint. | 3 | ||
| AccessArgumentsResolverFactory | class |
Drupal\ |
core/ |
Resolves the arguments to pass to an access check callable. | 2 | ||
| AccessArgumentsResolverFactoryInterface | interface |
Drupal\ |
core/ |
Constructs the arguments resolver instance to use when running access checks. | 1 |
