Documentation & API reference
Constants
Primary tabs
| Name | Location | Description | Direct uses |
Strings |
|---|---|---|---|---|
| NODE_STICKY |
drupal/ |
Denotes that the node is sticky at the top of the page. | 3 | |
| NODE_ACCESS_ALLOW |
drupal/ |
Denotes that access is allowed for a node. | 3 | |
| NODE_ACCESS_DENY |
drupal/ |
Denotes that access is denied for a node. | 3 | |
| NODE_ACCESS_IGNORE |
drupal/ |
Denotes that access is unaffected for a node. | 4 | |
| BLOCK_REGION_NONE |
drupal/ |
Denotes that a block is not enabled in any region and should not be shown. | 8 | |
| BLOCK_CUSTOM_FIXED |
drupal/ |
Users cannot control whether or not they see this block. | 2 | |
| BLOCK_CUSTOM_ENABLED |
drupal/ |
Shows this block by default, but lets individual users hide it. | 2 | |
| BLOCK_CUSTOM_DISABLED |
drupal/ |
Hides this block by default but lets individual users show it. | 1 | |
| BLOCK_VISIBILITY_NOTLISTED |
drupal/ |
Shows this block on every page except the listed pages. | 3 | |
| BLOCK_VISIBILITY_LISTED |
drupal/ |
Shows this block on only the listed pages. | 2 | |
| BLOCK_VISIBILITY_PHP |
drupal/ |
Shows this block if the associated PHP code returns TRUE. | 2 | |
| SHORTCUT_DEFAULT_SET_NAME |
drupal/ |
The name of the default shortcut set. | 6 | |
| SIMPLETEST_MINIMUM_PHP_MEMORY_LIMIT |
drupal/ |
Minimum value of PHP memory_limit for SimpleTest. | 1 | |
| USERNAME_MAX_LENGTH |
drupal/ |
Maximum length of username text field. | 5 | |
| USER_REGISTER_ADMINISTRATORS_ONLY |
drupal/ |
Only administrators can create user accounts. | 8 | |
| USER_REGISTER_VISITORS |
drupal/ |
Visitors can create their own accounts. | 5 | |
| USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL |
drupal/ |
Visitors can create accounts, but they don't become active without administrative approval. | 1 | |
| IMAGE_STORAGE_NORMAL |
drupal/ |
Image style constant for user presets in the database. | 1 | |
| IMAGE_STORAGE_OVERRIDE |
drupal/ |
Image style constant for user presets that override module-defined presets. | 1 | |
| IMAGE_STORAGE_DEFAULT |
drupal/ |
Image style constant for module-defined presets in code. | 1 | |
| TAXONOMY_HIERARCHY_DISABLED |
drupal/ |
Denotes that no term in the vocabulary has a parent. | 3 | |
| 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 | |
| LOCALE_JS_STRING |
drupal/ |
Regular expression pattern used to localize JavaScript strings. | 1 | |
| LOCALE_JS_OBJECT |
drupal/ |
Regular expression pattern used to match simple JS object literal. | 1 | |
| LOCALE_NOT_CUSTOMIZED |
drupal/ |
Flag for locally not customized interface translation. | 10 | |
| LOCALE_CUSTOMIZED |
drupal/ |
Flag for locally customized interface translation. | 5 | |
| LOCALE_TRANSLATION_USE_SOURCE_LOCAL |
drupal/ |
Translation update mode: Use local files only. | ||
| LOCALE_TRANSLATION_USE_SOURCE_REMOTE_AND_LOCAL |
drupal/ |
Translation update mode: Use both remote and local files. | 1 | |
| LOCALE_TRANSLATION_DEFAULT_SERVER_PATTERN |
drupal/ |
Default location of gettext file on the translation server. | ||
| LOCALE_TRANSLATION_DEFAULT_FILENAME |
drupal/ |
Default file name of translation files stored in the local file system. | ||
| LOCALE_TRANSLATION_TIMESTAMP_THRESHOLD |
drupal/ |
Threshold for timestamp comparison. | 1 | |
| LOCALE_TRANSLATION_SOURCE_COMPARE_LT |
drupal/ |
Comparison result of source files timestamps. | 2 | |
| LOCALE_TRANSLATION_SOURCE_COMPARE_EQ |
drupal/ |
Comparison result of source files timestamps. | 1 | |
| LOCALE_TRANSLATION_SOURCE_COMPARE_GT |
drupal/ |
Comparison result of source files timestamps. | 1 | |
| RDF_DEFAULT_BUNDLE |
drupal/ |
RDF bundle flag: Default bundle. | 7 | |
| UPDATE_DEFAULT_URL |
drupal/ |
URL to check for updates, if a given project doesn't define its own. | 1 | |
| UPDATE_NOT_SECURE |
drupal/ |
Project is missing security update(s). | 8 | |
| 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_CURRENT |
drupal/ |
Project has a new release available, but it is not a security release. | 7 | |
| UPDATE_CURRENT |
drupal/ |
Project is up to date. | 5 | |
| UPDATE_NOT_CHECKED |
drupal/ |
Project's status cannot be checked. | 6 | |
| UPDATE_UNKNOWN |
drupal/ |
No available update data was found for project. | 7 | |
| UPDATE_NOT_FETCHED |
drupal/ |
There was a failure fetching available update data for this project. | 5 | |
| UPDATE_FETCH_PENDING |
drupal/ |
We need to (re)fetch available update data for this project. | 5 | |
| FILTER_TYPE_MARKUP_LANGUAGE |
drupal/ |
Non-HTML markup language filters that generate HTML. | 4 | |
| FILTER_TYPE_HTML_RESTRICTOR |
drupal/ |
HTML tag and attribute restricting filters. | 5 | |
| FILTER_TYPE_TRANSFORM_REVERSIBLE |
drupal/ |
Reversible transformation filters. | ||
| FILTER_TYPE_TRANSFORM_IRREVERSIBLE |
drupal/ |
Irreversible transformation filters. | 1 |