Documentation & API reference
Constants
Primary tabs
| Name | Location | Description |
Direct uses |
Strings |
|---|---|---|---|---|
| DRUPAL_CACHE_CUSTOM |
drupal/ |
The block is handling its own caching in its hook_block_view(). | 2 | |
| DRUPAL_CACHE_PER_USER |
drupal/ |
The block or element can change depending on the user. | 2 | |
| MENU_CONTEXT_NONE |
drupal/ |
Internal menu flag: Invisible local task. | 2 | |
| OPENID_DH_DEFAULT_MOD |
drupal/ |
Diffie-Hellman Key Exchange Default Value. | 2 | 1 |
| OPENID_DH_DEFAULT_GEN |
drupal/ |
Diffie-Hellman generator; used for Diffie-Hellman key exchange computations. | 2 | |
| OPENID_NS_AX |
drupal/ |
OpenID Attribute Exchange extension. | 2 | |
| DRUPAL_MAXIMUM_TEMP_FILE_AGE |
drupal/ |
Maximum age of temporary files in seconds. | 2 | |
| PREG_CLASS_CJK |
drupal/ |
Matches CJK (Chinese, Japanese, Korean) letter-like characters. | 2 | 1 |
| 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_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 | |
| EMAIL_MAX_LENGTH |
drupal/ |
Maximum length of user e-mail text field. | 2 | 1 |
| LOCALE_TRANSLATION_SOURCE_COMPARE_LT |
drupal/ |
Comparison result of source files timestamps. | 2 | |
| LANGUAGE_NEGOTIATION_INTERFACE |
drupal/ |
The language is determined using the current interface language. | 2 | |
| COMMENT_ANONYMOUS_MAYNOT_CONTACT |
drupal/ |
Anonymous posters cannot enter their contact information. | 2 | |
| COMMENT_ANONYMOUS_MAY_CONTACT |
drupal/ |
Anonymous posters may leave their contact information. | 2 | |
| FILE_URL_TEST_CDN_1 |
drupal/ |
2 | ||
| VIEWS_HANDLER_RENDER_TEXT_PHASE_EMPTY |
drupal/ |
Indicator of the render_text() method for rendering the empty text. | 2 | 1 |
| INSTALL_TASK_SKIP |
drupal/ |
Do not run the task during the current installation request. | 3 | |
| INSTALL_TASK_RUN_IF_NOT_COMPLETED |
drupal/ |
Run the task on each installation request until the database is set up. | 3 | |
| FILE_EXECUTABLE |
drupal/ |
File permission check -- File is executable. | 3 | |
| FILE_NOT_READABLE |
drupal/ |
File permission check -- File is not readable. | 3 | |
| FILE_NOT_EXECUTABLE |
drupal/ |
File permission check -- File is not executable. | 3 | |
| PREG_CLASS_UNICODE_WORD_BOUNDARY |
drupal/ |
Matches Unicode characters that are word boundaries. | 3 | 1 |
| STREAM_WRAPPERS_LOCAL_NORMAL |
drupal/ |
Stream wrapper type flag -- visible, readable and writeable using local files. | 3 | 1 |
| WATCHDOG_DEBUG |
drupal/ |
Log message severity -- Debug-level messages. | 3 | |
| DRUPAL_BOOTSTRAP_DATABASE |
drupal/ |
Fourth bootstrap phase: initialize database layer. | 3 | |
| DRUPAL_KILOBYTE |
drupal/ |
The number of bytes in a kilobyte. | 3 | |
| LANGUAGE_LTR |
drupal/ |
Language written left to right. Possible value of $language->direction. | 3 | |
| UNICODE_SINGLEBYTE |
drupal/ |
Indicates that standard PHP (emulated) unicode support is being used. | 3 | |
| DRUPAL_CACHE_PER_PAGE |
drupal/ |
The block or element can change depending on the page being viewed. | 3 | |
| MAIL_LINE_ENDINGS |
drupal/ |
Auto-detect appropriate line endings for e-mails. | 3 | 1 |
| MARK_READ |
drupal/ |
Mark content as read. | 3 | |
| MARK_UPDATED |
drupal/ |
Mark content as being updated. | 3 | |
| MENU_VISIBLE_IN_TREE |
drupal/ |
Internal menu flag -- menu item is visible in the menu tree. | 3 | |
| MENU_IS_LOCAL_TASK |
drupal/ |
Internal menu flag -- menu item is a local task. | 3 | |
| MENU_NOT_FOUND |
drupal/ |
Internal menu status code -- Menu item was not found. | 3 | |
| OPENID_NS_2_0 |
drupal/ |
OpenID Authentication 2.0 namespace URL. | 3 | |
| OPENID_NS_SREG |
drupal/ |
OpenID Simple Registration extension. | 3 | |
| AGGREGATOR_CLEAR_NEVER |
drupal/ |
Denotes that a feed's items should never expire. | 3 | |
| FIELD_BEHAVIOR_DEFAULT |
drupal/ |
Value for field API concerning widget default and multiple value settings. | 3 | |
| FIELD_LOAD_REVISION |
drupal/ |
Load the version of an entity's field data specified in the entity. | 3 | 1 |
| 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 | |
| HISTORY_READ_LIMIT |
drupal/ |
Entities changed before this time are always shown as read. | 3 | 1 |
| BLOCK_VISIBILITY_NOTLISTED |
drupal/ |
Shows this block on every page except the listed pages. | 3 | |
| TAXONOMY_HIERARCHY_DISABLED |
drupal/ |
Denotes that no term in the vocabulary has a parent. | 3 | |
| LANGUAGE_NEGOTIATION_URL |
drupal/ |
The language is determined using path prefix or domain. | 3 |