Documentation & API reference
Constants
Primary tabs
| Name | Location | Description |
Direct uses |
Strings |
|---|---|---|---|---|
| FILE_URL_TEST_CDN_1 |
drupal/ |
@file Helper module for the file tests. | 2 | 1 |
| UNICODE_SINGLEBYTE |
drupal/ |
Indicates that standard PHP (emulated) unicode support is being used. | 3 | 1 |
| PREG_CLASS_UNICODE_WORD_BOUNDARY |
drupal/ |
Matches Unicode characters that are word boundaries. | 3 | 1 |
| MAIL_LINE_ENDINGS |
drupal/ |
Auto-detect appropriate line endings for e-mails. | 3 | 1 |
| SCHEMA_INSTALLED |
drupal/ |
Indicates that a module has been installed. | 3 | 1 |
| FILE_EXECUTABLE |
drupal/ |
File permission check -- File is executable. | 3 | 1 |
| FILE_NOT_READABLE |
drupal/ |
File permission check -- File is not readable. | 3 | 1 |
| FILE_NOT_EXECUTABLE |
drupal/ |
File permission check -- File is not executable. | 3 | 1 |
| DRUPAL_HASH_COUNT |
drupal/ |
The standard log2 number of iterations for password stretching. This should increase by 1 every Drupal version in order to counteract increases in the speed and power of computers available to crack the hashes. | 3 | 1 |
| DRUPAL_MIN_HASH_COUNT |
drupal/ |
The minimum allowed log2 number of iterations for password stretching. | 3 | 1 |
| LOCALE_IMPORT_KEEP |
drupal/ |
Translation import mode keeping existing translations and only inserting new strings. | 3 | 1 |
| MARK_NEW |
drupal/ |
Mark content as being new. | 3 | 1 |
| MENU_LINKS_TO_PARENT |
drupal/ |
Internal menu flag -- menu item links back to its parent. | 3 | 1 |
| MENU_IS_LOCAL_TASK |
drupal/ |
Internal menu flag -- menu item is a local task. | 3 | 1 |
| INSTALL_TASK_SKIP |
drupal/ |
Do not run the task during the current installation request. | 3 | 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 |
| ERROR_REPORTING_DISPLAY_ALL |
drupal/ |
Error reporting level: display all messages. | 3 | 1 |
| CACHE_TEMPORARY |
drupal/ |
Indicates that the item should be removed at the next general cache wipe. | 3 | 1 |
| WATCHDOG_DEBUG |
drupal/ |
Log message severity -- Debug-level messages. | 3 | 1 |
| DRUPAL_BOOTSTRAP_DATABASE |
drupal/ |
Third bootstrap phase: initialize database layer. | 3 | 1 |
| DRUPAL_KILOBYTE |
drupal/ |
The number of bytes in a kilobyte. | 3 | 1 |
| STREAM_WRAPPERS_LOCAL |
drupal/ |
Stream wrapper bit flag -- refers to a local file system location. | 3 | 1 |
| FIELD_LOAD_REVISION |
drupal/ |
Age argument for loading the version of an entity's field data specified in the entity with field_attach_load(). | 3 | 1 |
| MENU_MAX_MENU_NAME_LENGTH_UI |
drupal/ |
Maximum length of menu name as entered by the user. Database length is 32 and we add a menu- prefix. | 3 | 1 |
| OPENID_NS_2_0 |
drupal/ |
OpenID Authentication 2.0 namespace URL. | 3 | 1 |
| OPENID_NS_AX |
drupal/ |
OpenID Attribute Exchange extension. | 3 | 1 |
| PROFILE_PUBLIC |
drupal/ |
Public field, content shown on profile page but not used on member list pages. | 3 | 1 |
| NODE_NOT_PROMOTED |
drupal/ |
Node is not promoted to front page. | 3 | 1 |
| NODE_PROMOTED |
drupal/ |
Node is promoted to front page. | 3 | 1 |
| NODE_NOT_STICKY |
drupal/ |
Node is not sticky at top of the page. | 3 | 1 |
| NODE_STICKY |
drupal/ |
Node is sticky at top of the page. | 3 | 1 |
| NODE_NEW_LIMIT |
drupal/ |
Nodes changed before this time are always marked as read. | 3 | 1 |
| NODE_ACCESS_ALLOW |
drupal/ |
Modules should return this value from hook_node_access() to allow access to a node. | 3 | 1 |
| EMAIL_MAX_LENGTH |
drupal/ |
Maximum length of user e-mail text field. | 3 | 1 |
| BLOCK_VISIBILITY_LISTED |
drupal/ |
Shows this block on only the listed pages. | 3 | 1 |
| IMAGE_STORAGE_NORMAL |
drupal/ |
Image style constant for user presets in the database. | 3 | 1 |
| IMAGE_STORAGE_OVERRIDE |
drupal/ |
Image style constant for user presets that override module-defined presets. | 3 | 1 |
| IMAGE_STORAGE_DEFAULT |
drupal/ |
Image style constant for module-defined presets in code. | 3 | 1 |
| FILE_URL_TEST_CDN_2 |
drupal/ |
3 | 1 | |
| CSS_THEME |
drupal/ |
The default group for theme CSS files added to the page. | 4 | 1 |
| JS_LIBRARY |
drupal/ |
The default group for JavaScript and jQuery libraries added to the page. | 4 | 1 |
| DRUPAL_CACHE_PER_PAGE |
drupal/ |
The block or element can change depending on the page being viewed. | 4 | 1 |
| MENU_NORMAL_ITEM |
drupal/ |
Menu type -- A "normal" menu item that's shown in menu and breadcrumbs. | 4 | 1 |
| MENU_CONTEXT_PAGE |
drupal/ |
Internal menu flag: Local task should be displayed in page context. | 4 | 1 |
| MENU_CONTEXT_INLINE |
drupal/ |
Internal menu flag: Local task should be displayed inline. | 4 | 1 |
| MENU_MAX_PARTS |
drupal/ |
The maximum number of path elements for a menu callback | 4 | 1 |
| DRUPAL_BOOTSTRAP_SESSION |
drupal/ |
Fifth bootstrap phase: initialize session handling. | 4 | 1 |
| LANGUAGE_TYPE_URL |
drupal/ |
The type of language used for URLs. | 4 | 1 |
| FIELD_STORAGE_UPDATE |
drupal/ |
Argument for an update operation. | 4 | 1 |
| REGIONS_ALL |
drupal/ |
Return all regions. | 4 | 1 |