Documentation & API reference
Constants
Primary tabs
| Name |
Location |
Description | Direct uses | Strings |
|---|---|---|---|---|
| FILTER_TYPE_TRANSFORM_REVERSIBLE |
drupal/ |
Reversible transformation filters. | ||
| FILTER_TYPE_TRANSFORM_IRREVERSIBLE |
drupal/ |
Irreversible transformation filters. | 1 | |
| FILE_URL_TEST_CDN_1 |
drupal/ |
2 | ||
| FILE_URL_TEST_CDN_2 |
drupal/ |
3 | ||
| FIELD_CARDINALITY_UNLIMITED |
drupal/ |
Value for field API indicating a field accepts an unlimited number of values. | 32 | |
| FIELD_BEHAVIOR_NONE |
drupal/ |
Value for field API indicating a widget doesn't accept default values. | ||
| FIELD_BEHAVIOR_DEFAULT |
drupal/ |
Value for field API concerning widget default and multiple value settings. | 3 | |
| FIELD_BEHAVIOR_CUSTOM |
drupal/ |
Value for field API indicating a widget can receive several field values. | 1 | |
| FIELD_LOAD_CURRENT |
drupal/ |
Load the most recent version of an entity's field data. | 14 | 1 |
| FIELD_LOAD_REVISION |
drupal/ |
Load the version of an entity's field data specified in the entity. | 3 | 1 |
| FIELD_STORAGE_UPDATE |
drupal/ |
Argument for an update operation. | 4 | |
| FIELD_STORAGE_INSERT |
drupal/ |
Argument for an insert operation. | 1 | |
| COMMENT_NOT_PUBLISHED |
drupal/ |
Comment is awaiting approval. | 13 | |
| COMMENT_PUBLISHED |
drupal/ |
Comment is published. | 23 | |
| COMMENT_MODE_FLAT |
drupal/ |
Comments are displayed in a flat list - expanded. | 6 | |
| COMMENT_MODE_THREADED |
drupal/ |
Comments are displayed as a threaded list - expanded. | 17 | |
| 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 | |
| COMMENT_ANONYMOUS_MUST_CONTACT |
drupal/ |
Anonymous posters are required to leave their contact information. | 1 | |
| COMMENT_FORM_SEPARATE_PAGE |
drupal/ |
Comment form should be displayed on a separate page. | 5 | |
| COMMENT_FORM_BELOW |
drupal/ |
Comment form should be shown below post or list of comments. | 8 | |
| COMMENT_NODE_HIDDEN |
drupal/ |
Comments for this node are hidden. | 10 | |
| COMMENT_NODE_CLOSED |
drupal/ |
Comments for this node are closed. | 6 | |
| COMMENT_NODE_OPEN |
drupal/ |
Comments for this node are open. | 15 | |
| BLOCK_VISIBILITY_PHP |
drupal/ |
Shows this block if the associated PHP code returns TRUE. | 2 | |
| 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 | |
| AGGREGATOR_CLEAR_NEVER |
drupal/ |
Denotes that a feed's items should never expire. | 3 | |
| USE_ASSERTS |
drupal/ |
@file A PHP diff engine for phpwiki. (Taken from phpwiki-1.3.3) | 4 | 1 |
| NBSP |
drupal/ |
Additions by Axel Boldt follow, partly taken from diff.php, phpwiki-1.3.3 | 1 | 1 |
| ARCHIVE_TAR_ATT_SEPARATOR |
drupal/ |
1 | 1 | |
| ARCHIVE_TAR_END_BLOCK |
drupal/ |
1 | 1 | |
| DRUPAL_ROOT |
drupal/ |
Defines the root directory of the Drupal installation. | 136 | 7 |
| MAINTENANCE_MODE |
drupal/ |
Global flag to indicate the site is in installation mode. | 7 | 17 |
| REQUIRED_D7_SCHEMA_VERSION |
drupal/ |
Minimum schema version of Drupal 7 required for upgrade to Drupal 8. | 1 | |
| PREG_CLASS_UNICODE_WORD_BOUNDARY |
drupal/ |
Matches Unicode characters that are word boundaries. | 3 | 1 |
| MARK_READ |
drupal/ |
Mark content as read. | 3 | |
| MARK_NEW |
drupal/ |
Mark content as being new. | 4 | |
| MARK_UPDATED |
drupal/ |
Mark content as being updated. | 3 | |
| RESPONSIVE_PRIORITY_MEDIUM |
drupal/ |
A responsive table class; hide table cell on narrow devices. | 5 | |
| RESPONSIVE_PRIORITY_LOW |
drupal/ |
A responsive table class; only show table cell on wide devices. | 6 | |
| SCHEMA_UNINSTALLED |
drupal/ |
Indicates that a module has not been installed yet. | 9 | |
| SCHEMA_INSTALLED |
drupal/ |
Indicates that a module has been installed. | 2 | |
| MENU_IS_ROOT |
drupal/ |
Internal menu flag -- menu item is the root of the menu tree. | ||
| MENU_VISIBLE_IN_TREE |
drupal/ |
Internal menu flag -- menu item is visible in the menu tree. | 3 | |
| MENU_VISIBLE_IN_BREADCRUMB |
drupal/ |
Internal menu flag -- menu item is visible in the breadcrumb. | 8 |