Documentation & API reference
Constants
Primary tabs
| Name |
Location |
Description | Direct uses | Strings |
|---|---|---|---|---|
| JS_DEFAULT |
drupal/ |
The default group for module JavaScript code added to the page. | 2 | 1 |
| JS_THEME |
drupal/ |
The default group for theme JavaScript code added to the page. | 2 | 1 |
| HTTP_REQUEST_TIMEOUT |
drupal/ |
Error code indicating that the request exceeded the specified timeout. | 2 | 1 |
| DRUPAL_NO_CACHE |
drupal/ |
The block should not get cached. | 15 | 1 |
| DRUPAL_CACHE_CUSTOM |
drupal/ |
The block is handling its own caching in its hook_block_view(). | 2 | 1 |
| DRUPAL_CACHE_PER_ROLE |
drupal/ |
The block or element can change depending on the user's roles. | 8 | 1 |
| DRUPAL_CACHE_PER_USER |
drupal/ |
The block or element can change depending on the user. | 2 | 1 |
| DRUPAL_CACHE_PER_PAGE |
drupal/ |
The block or element can change depending on the page being viewed. | 4 | 1 |
| DRUPAL_CACHE_GLOBAL |
drupal/ |
The block or element is the same for every user and page that it is visible. | 1 | 1 |
| POSTGRESQL_NEXTID_LOCK |
drupal/ |
The name by which to obtain a lock for retrieving the next insert id. | 1 | 1 |
| FILE_CREATE_DIRECTORY |
drupal/ |
Flag used by file_prepare_directory() -- create directory if not present. | 22 | 1 |
| FILE_MODIFY_PERMISSIONS |
drupal/ |
Flag used by file_prepare_directory() -- file permissions may be changed. | 6 | 1 |
| FILE_EXISTS_RENAME |
drupal/ |
Flag for dealing with existing files: Appends number until name is unique. | 19 | 1 |
| FILE_EXISTS_REPLACE |
drupal/ |
Flag for dealing with existing files: Replace the existing file. | 22 | 1 |
| FILE_EXISTS_ERROR |
drupal/ |
Flag for dealing with existing files: Do nothing and return FALSE. | 12 | 1 |
| FILE_STATUS_PERMANENT |
drupal/ |
Indicates that the file is permanent and should not be deleted. | 22 | 1 |
| INSTALL_TASK_SKIP |
drupal/ |
Do not run the task during the current installation request. | 3 | 1 |
| INSTALL_TASK_RUN_IF_REACHED |
drupal/ |
Run the task on each installation request until the database is set up. | 2 | 1 |
| INSTALL_TASK_RUN_IF_NOT_COMPLETED |
drupal/ |
Global flag to indicate that a task should be run on each installation request that reaches it, until the database is set up and we are able to record the fact that it already ran. | 3 | 1 |
| SCHEMA_UNINSTALLED |
drupal/ |
Indicates that a module has not been installed yet. | 8 | 1 |
| SCHEMA_INSTALLED |
drupal/ |
Indicates that a module has been installed. | 3 | 1 |
| REQUIREMENT_INFO |
drupal/ |
Requirement severity -- Informational message only. | 6 | 1 |
| REQUIREMENT_OK |
drupal/ |
Requirement severity -- Requirement successfully met. | 9 | 1 |
| REQUIREMENT_WARNING |
drupal/ |
Requirement severity -- Warning condition; proceed but flag warning. | 13 | 1 |
| REQUIREMENT_ERROR |
drupal/ |
Requirement severity -- Error condition; abort installation. | 21 | 1 |
| FILE_EXIST |
drupal/ |
File permission check -- File exists. | 5 | 1 |
| FILE_READABLE |
drupal/ |
File permission check -- File is readable. | 7 | 1 |
| FILE_WRITABLE |
drupal/ |
File permission check -- File is writable. | 5 | 1 |
| FILE_EXECUTABLE |
drupal/ |
File permission check -- File is executable. | 3 | 1 |
| FILE_NOT_EXIST |
drupal/ |
File permission check -- File does not exist. | 1 | 1 |
| FILE_NOT_READABLE |
drupal/ |
File permission check -- File is not readable. | 3 | 1 |
| FILE_NOT_WRITABLE |
drupal/ |
File permission check -- File is not writable. | 5 | 1 |
| FILE_NOT_EXECUTABLE |
drupal/ |
File permission check -- File is not executable. | 3 | 1 |
| LANGUAGE_NEGOTIATION_DEFAULT |
drupal/ |
No language negotiation. The default language is used. | 7 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_URL |
drupal/ |
The language is determined using a URL language indicator: path prefix or domain according to the configuration. | 5 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_BROWSER |
drupal/ |
The language is set based on the browser language settings. | 2 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_INTERFACE |
drupal/ |
The language is determined using the current interface language. | 2 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_URL_FALLBACK |
drupal/ |
If no URL language is available language is determined using an already detected one. | 1 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_USER |
drupal/ |
The language is set based on the user language settings. | 1 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_SESSION |
drupal/ |
The language is set based on the request/session parameters. | 1 | 1 |
| LOCALE_JS_STRING |
drupal/ |
Regular expression pattern used to localize JavaScript strings. | 1 | 1 |
| LOCALE_JS_OBJECT |
drupal/ |
Regular expression pattern used to match simple JS object literal. | 1 | 1 |
| LOCALE_JS_OBJECT_CONTEXT |
drupal/ |
Regular expression to match an object containing a key 'context'. | 1 | 1 |
| LOCALE_IMPORT_OVERWRITE |
drupal/ |
Translation import mode overwriting all existing translations if new translated version available. | 1 | 1 |
| LOCALE_IMPORT_KEEP |
drupal/ |
Translation import mode keeping existing translations and only inserting new strings. | 3 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX |
drupal/ |
URL language negotiation: use the path prefix as URL language indicator. | 7 | 1 |
| LOCALE_LANGUAGE_NEGOTIATION_URL_DOMAIN |
drupal/ |
URL language negotiation: use the domain as URL language indicator. | 5 | 1 |
| MAIL_LINE_ENDINGS |
drupal/ |
Auto-detect appropriate line endings for e-mails. | 3 | 1 |
| MENU_IS_ROOT |
drupal/ |
Internal menu flag -- menu item is the root of the menu tree. | 1 | |
| MENU_VISIBLE_IN_TREE |
drupal/ |
Internal menu flag -- menu item is visible in the menu tree. | 2 | 1 |