Documentation & API reference
Constants
Primary tabs
| Name | Location | Description |
Direct uses |
Strings |
|---|---|---|---|---|
| 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_READABLE |
drupal/ |
File permission check -- File is readable. | 7 | |
| 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 | |
| LOCALE_PLURAL_DELIMITER |
drupal/ |
The delimiter used to split plural strings. | 8 | |
| MENU_SUGGESTED_ITEM |
drupal/ |
Menu type -- A normal menu item, hidden until enabled by an administrator. | 8 | 1 |
| CONFIG_ACTIVE_DIRECTORY |
drupal/ |
$config_directories key for active directory. | 8 | |
| CONFIG_STAGING_DIRECTORY |
drupal/ |
$config_directories key for staging directory. | 8 | |
| UPDATE_NOT_SECURE |
drupal/ |
Project is missing security update(s). | 8 | |
| NODE_PUBLISHED |
drupal/ |
Denotes that the node is published. | 8 | |
| COMMENT_FORM_BELOW |
drupal/ |
Comment form should be shown below post or list of comments. | 8 | |
| MENU_VISIBLE_IN_BREADCRUMB |
drupal/ |
Internal menu flag -- menu item is visible in the breadcrumb. | 9 | |
| MENU_CONTEXT_PAGE |
drupal/ |
Internal menu flag: Local task should be displayed in page context. | 9 | |
| FILE_MODIFY_PERMISSIONS |
drupal/ |
Flag used by file_prepare_directory() -- file permissions may be changed. | 10 | |
| LOCALE_NOT_CUSTOMIZED |
drupal/ |
Flag for locally not customized interface translation. | 10 | |
| COMMENT_NODE_HIDDEN |
drupal/ |
Comments for this node are hidden. | 10 | |
| MENU_CONTEXT_INLINE |
drupal/ |
Internal menu flag: Local task should be displayed inline. | 11 | |
| REQUIREMENT_WARNING |
drupal/ |
Requirement severity -- Warning condition; proceed but flag warning. | 12 | |
| SCHEMA_UNINSTALLED |
drupal/ |
Indicates that a module has not been installed yet. | 12 | |
| FILE_EXISTS_ERROR |
drupal/ |
Flag for dealing with existing files: Do nothing and return FALSE. | 12 | |
| DRUPAL_CORE_COMPATIBILITY |
drupal/ |
Core API compatibility. | 12 | 1 |
| DRUPAL_NO_CACHE |
drupal/ |
The block should not get cached. | 13 | |
| DRUPAL_PHP_FUNCTION_PATTERN |
drupal/ |
Regular expression to match PHP function names. | 13 | |
| SAVED_NEW |
drupal/ |
Return status for saving which involved creating a new item. | 14 | |
| FIELD_LOAD_CURRENT |
drupal/ |
Load the most recent version of an entity's field data. | 15 | 1 |
| DRUPAL_DISABLED |
drupal/ |
Disabled option on forms and settings | 15 | |
| COMMENT_NOT_PUBLISHED |
drupal/ |
Comment is awaiting approval. | 15 | |
| COMMENT_NODE_OPEN |
drupal/ |
Comments for this node are open. | 15 | |
| MENU_LOCAL_ACTION |
drupal/ |
Menu type -- An action specific to the parent, usually rendered as a link. | 17 | 1 |
| COMMENT_MODE_THREADED |
drupal/ |
Comments are displayed as a threaded list - expanded. | 17 | |
| FILE_EXISTS_RENAME |
drupal/ |
Flag for dealing with existing files: Appends number until name is unique. | 18 | |
| MENU_MAX_DEPTH |
drupal/ |
The maximum depth of a menu links tree - matches the number of p columns. | 18 | |
| WATCHDOG_WARNING |
drupal/ |
Log message severity -- Warning conditions. | 18 | |
| REQUIREMENT_ERROR |
drupal/ |
Requirement severity -- Error condition; abort installation. | 19 | |
| FILE_STATUS_PERMANENT |
drupal/ |
Indicates that the file is permanent and should not be deleted. | 19 | |
| SAVED_UPDATED |
drupal/ |
Return status for saving which involved an update to an existing item. | 19 | |
| DRUPAL_OPTIONAL |
drupal/ |
Optional option on forms and settings | 19 | |
| FILE_CREATE_DIRECTORY |
drupal/ |
Flag used by file_prepare_directory() -- create directory if not present. | 24 | |
| WATCHDOG_ERROR |
drupal/ |
Log message severity -- Error conditions. | 25 | |
| FILE_EXISTS_REPLACE |
drupal/ |
Flag for dealing with existing files: Replace the existing file. | 26 | |
| COMMENT_PUBLISHED |
drupal/ |
Comment is published. | 26 | |
| MENU_LOCAL_TASK |
drupal/ |
Menu type -- A task specific to the parent item, usually rendered as a tab. | 28 | 1 |
| WATCHDOG_NOTICE |
drupal/ |
Log message severity -- Normal but significant conditions. | 34 | |
| DRUPAL_AUTHENTICATED_RID |
drupal/ |
Role ID for authenticated users; should match what's in the "role" table. | 34 |