Documentation & API reference
Constants
Primary tabs
| Name | Location | Description |
Direct uses |
Strings |
|---|---|---|---|---|
| DRUPAL_BOOTSTRAP_FULL |
drupal/ |
Final bootstrap phase: initialize language, path, theme, and modules. | 7 | |
| UPDATE_NOT_CURRENT |
drupal/ |
Project has a new release available, but it is not a security release. | 7 | |
| UPDATE_UNKNOWN |
drupal/ |
No available update data was found for project. | 7 | |
| DRUPAL_REQUIRED |
drupal/ |
Required option on forms and settings | 7 | |
| USER_REGISTER_ADMINISTRATORS_ONLY |
drupal/ |
Only administrators can create user accounts. | 7 | |
| RDF_DEFAULT_BUNDLE |
drupal/ |
RDF bundle flag: Default bundle. | 7 | |
| MAINTENANCE_MODE |
drupal/ |
Global flag to identify update.php and authorize.php runs. | 6 | 17 |
| MAINTENANCE_MODE |
drupal/ |
Global flag to indicate the site is in installation mode. | 6 | 17 |
| FILE_EXIST |
drupal/ |
File permission check -- File exists. | 6 | |
| FILE_WRITABLE |
drupal/ |
File permission check -- File is writable. | 6 | |
| RESPONSIVE_PRIORITY_MEDIUM |
drupal/ |
A responsive table class; hide table cell on narrow devices. | 6 | |
| RESPONSIVE_PRIORITY_LOW |
drupal/ |
A responsive table class; only show table cell on wide devices. | 6 | |
| JS_LIBRARY |
drupal/ |
The default group for JavaScript and jQuery libraries added to the page. | 6 | |
| MENU_NORMAL_ITEM |
drupal/ |
Menu type -- A "normal" menu item that's shown in menu and breadcrumbs. | 6 | 1 |
| WATCHDOG_INFO |
drupal/ |
Log message severity -- Informational messages. | 6 | |
| UPDATE_REVOKED |
drupal/ |
Current release has been unpublished and is no longer available. | 6 | |
| UPDATE_NOT_SUPPORTED |
drupal/ |
Current release is no longer supported by the project maintainer. | 6 | |
| UPDATE_NOT_CHECKED |
drupal/ |
Project's status cannot be checked. | 6 | |
| HISTORY_READ_LIMIT |
drupal/ |
Entities changed before this time are always shown as read. | 6 | 1 |
| DATETIME_DATETIME_STORAGE_FORMAT |
drupal/ |
Defines the format that date and time should be stored in. | 6 | |
| DATETIME_DATE_STORAGE_FORMAT |
drupal/ |
Defines the format that dates should be stored in. | 6 | |
| LOCALE_TRANSLATION_USE_SOURCE_REMOTE_AND_LOCAL |
drupal/ |
Translation update mode: Use both remote and local files. | 6 | |
| COMMENT_MODE_FLAT |
drupal/ |
Comments are displayed in a flat list - expanded. | 6 | |
| COMMENT_NODE_CLOSED |
drupal/ |
Comments for this node are closed. | 6 | |
| MAINTENANCE_MODE |
drupal/ |
Global flag indicating that update.php is being run. | 6 | 17 |
| LANGUAGE_NEGOTIATION_SELECTED |
drupal/ |
No language negotiation. The default language is used. | 6 | |
| LANGUAGE_NEGOTIATION_URL_DOMAIN |
drupal/ |
URL language negotiation: use the domain as URL language indicator. | 6 | |
| FILE_NOT_WRITABLE |
drupal/ |
File permission check -- File is not writable. | 5 | |
| STREAM_WRAPPERS_WRITE_VISIBLE |
drupal/ |
Stream wrapper type flag -- visible, readable and writeable. | 5 | 1 |
| JS_DEFAULT |
drupal/ |
The default group for module JavaScript code added to the page. | 5 | |
| DRUPAL_CACHE_PER_ROLE |
drupal/ |
The block or element can change depending on the user's roles. | 5 | |
| DRUPAL_MINIMUM_PHP |
drupal/ |
Minimum supported version of PHP. | 5 | |
| UPDATE_CURRENT |
drupal/ |
Project is up to date. | 5 | |
| UPDATE_NOT_FETCHED |
drupal/ |
There was a failure fetching available update data for this project. | 5 | |
| REGIONS_VISIBLE |
drupal/ |
Return only visible regions. | 5 | |
| TAXONOMY_HIERARCHY_SINGLE |
drupal/ |
Denotes that one or more terms in the vocabulary has a single parent. | 5 | |
| TAXONOMY_HIERARCHY_MULTIPLE |
drupal/ |
Denotes that one or more terms in the vocabulary have multiple parents. | 5 | |
| NODE_NOT_PUBLISHED |
drupal/ |
Denotes that the node is not published. | 5 | |
| USERNAME_MAX_LENGTH |
drupal/ |
Maximum length of username text field. | 5 | |
| USER_REGISTER_VISITORS |
drupal/ |
Visitors can create their own accounts. | 5 | |
| LOCALE_CUSTOMIZED |
drupal/ |
Flag for locally customized interface translation. | 5 | |
| LOCALE_TRANSLATION_OVERWRITE_ALL |
drupal/ |
UI option for override of existing translations. Override any translation. | 5 | |
| LOCALE_TRANSLATION_REMOTE |
drupal/ |
Translation source is a remote file. | 5 | |
| LOCALE_TRANSLATION_LOCAL |
drupal/ |
Translation source is a local file. | 5 | |
| COMMENT_FORM_SEPARATE_PAGE |
drupal/ |
Comment form should be displayed on a separate page. | 5 | |
| BLOCK_REGION_NONE |
drupal/ |
Denotes that a block is not enabled in any region and should not be shown. | 5 | |
| LANGUAGE_NEGOTIATION_URL_PREFIX |
drupal/ |
URL language negotiation: use the path prefix as URL language indicator. | 5 | |
| MARK_NEW |
drupal/ |
Mark content as being new. | 4 | |
| MENU_VISIBLE_IN_TREE |
drupal/ |
Internal menu flag -- menu item is visible in the menu tree. | 4 | |
| MENU_LINKS_TO_PARENT |
drupal/ |
Internal menu flag -- menu item links back to its parent. | 4 |