1. 8.2.x core/core.api.php utility
  2. 8.0.x core/core.api.php utility
  3. 8.1.x core/core.api.php utility
  4. 8.3.x core/core.api.php utility

Overview of utility classes and functions for developers.

Drupal provides developers with a variety of utility functions that make it easier and more efficient to perform tasks that are either really common, tedious, or difficult. Utility functions help to reduce code duplication and should be used in place of one-off code whenever possible.

See also


File interface


PHP wrapper functions

Sanitization functions


Input validation


core/core.api.php, line 1598
Documentation landing page and topics, plus core library hooks.


Namesort descending Location Description
Crypt core/lib/Drupal/Component/Utility/Crypt.php Utility class for cryptographically-secure string handling routines.
DiffArray core/lib/Drupal/Component/Utility/DiffArray.php Provides helpers to perform diffs on multi dimensional arrays.
Html core/lib/Drupal/Component/Utility/Html.php Provides DOMDocument helpers for parsing and serializing HTML strings.
Image core/lib/Drupal/Component/Utility/Image.php Provides helpers to operate on images.
NestedArray core/lib/Drupal/Component/Utility/NestedArray.php Provides helpers to perform operations on nested arrays and array keys of variable depth.
Number core/lib/Drupal/Component/Utility/Number.php Provides helper methods for manipulating numbers.
OpCodeCache core/lib/Drupal/Component/Utility/OpCodeCache.php Provides helpers to handle PHP opcode caches.
Random core/lib/Drupal/Component/Utility/Random.php Defines a utility class for creating random data.
Settings core/lib/Drupal/Core/Site/Settings.php Read only settings that are initialized with the class.
SortArray core/lib/Drupal/Component/Utility/SortArray.php Provides generic array sorting helper methods.
Tags core/lib/Drupal/Component/Utility/Tags.php Defines a class that can explode and implode tags.
Timer core/lib/Drupal/Component/Utility/Timer.php Provides helpers to use timers throughout a request.
Unicode core/lib/Drupal/Component/Utility/Unicode.php Provides Unicode-related conversions and operations.
UrlHelper core/lib/Drupal/Component/Utility/UrlHelper.php Helper class URL based methods.
UserAgent core/lib/Drupal/Component/Utility/UserAgent.php Provides user agent related utility functions.
Variable core/lib/Drupal/Component/Utility/Variable.php Provides helpers for dealing with variables.
Xss core/lib/Drupal/Component/Utility/Xss.php Provides helper to filter for cross-site scripting.