Documentation & API reference
Constants
Primary tabs
| Name |
Location |
Description | Direct uses | Strings |
|---|---|---|---|---|
| FILE_EXISTS_REPLACE |
drupal/ |
Flag for dealing with existing files: Replace the existing file. | 26 | |
| FILE_EXISTS_ERROR |
drupal/ |
Flag for dealing with existing files: Do nothing and return FALSE. | 12 | |
| FILE_STATUS_PERMANENT |
drupal/ |
Indicates that the file is permanent and should not be deleted. | 19 | |
| SAVED_NEW |
drupal/ |
Return status for saving which involved creating a new item. | 14 | |
| SAVED_UPDATED |
drupal/ |
Return status for saving which involved an update to an existing item. | 19 | |
| SAVED_DELETED |
drupal/ |
Return status for saving which deleted an existing item. | ||
| CSS_AGGREGATE_DEFAULT |
drupal/ |
The default aggregation group for CSS files added to the page. | 2 | |
| CSS_AGGREGATE_THEME |
drupal/ |
The default aggregation group for theme CSS files added to the page. | 2 | |
| CSS_BASE |
drupal/ |
The default weight for CSS rules that style HTML elements ("base" styles). | ||
| CSS_LAYOUT |
drupal/ |
The default weight for CSS rules that layout a page. | ||
| CSS_COMPONENT |
drupal/ |
The default weight for CSS rules that style design components (and their associated states and skins.) | 1 | |
| CSS_STATE |
drupal/ |
The default weight for CSS rules that style states and are not included with components. | ||
| CSS_SKIN |
drupal/ |
The default weight for CSS rules that style skins and are not included with components. | 1 | |
| JS_SETTING |
drupal/ |
The default group for JavaScript settings added to the page. | 1 | |
| JS_LIBRARY |
drupal/ |
The default group for JavaScript and jQuery libraries added to the page. | 6 | |
| JS_DEFAULT |
drupal/ |
The default group for module JavaScript code added to the page. | 5 | |
| JS_THEME |
drupal/ |
The default group for theme JavaScript code added to the page. | 2 | |
| DRUPAL_NO_CACHE |
drupal/ |
The block should not get cached. | 13 | |
| DRUPAL_CACHE_CUSTOM |
drupal/ |
The block is handling its own caching in its hook_block_view(). | 2 | |
| DRUPAL_CACHE_PER_ROLE |
drupal/ |
The block or element can change depending on the user's roles. | 5 | |
| DRUPAL_CACHE_PER_USER |
drupal/ |
The block or element can change depending on the user. | 2 | |
| DRUPAL_CACHE_PER_PAGE |
drupal/ |
The block or element can change depending on the page being viewed. | 3 | |
| DRUPAL_CACHE_GLOBAL |
drupal/ |
The block or element is the same for every user and page that it is visible. | 1 | |
| LOCALE_PLURAL_DELIMITER |
drupal/ |
The delimiter used to split plural strings. | 8 | |
| VERSION |
drupal/ |
The current system version. | 42 | 171 |
| DRUPAL_CORE_COMPATIBILITY |
drupal/ |
Core API compatibility. | 12 | 1 |
| DRUPAL_MINIMUM_PHP |
drupal/ |
Minimum supported version of PHP. | 5 | |
| DRUPAL_MINIMUM_PHP_MEMORY_LIMIT |
drupal/ |
Minimum recommended value of PHP memory_limit. | 1 | |
| ERROR_REPORTING_HIDE |
drupal/ |
Error reporting level: display no errors. | ||
| ERROR_REPORTING_DISPLAY_SOME |
drupal/ |
Error reporting level: display errors and warnings. | 1 | |
| ERROR_REPORTING_DISPLAY_ALL |
drupal/ |
Error reporting level: display all messages. | 2 | |
| ERROR_REPORTING_DISPLAY_VERBOSE |
drupal/ |
Error reporting level: display all messages, plus backtrace information. | 2 | |
| WATCHDOG_EMERGENCY |
drupal/ |
Log message severity -- Emergency: system is unusable. | 1 | |
| WATCHDOG_ALERT |
drupal/ |
Log message severity -- Alert: action must be taken immediately. | 1 | |
| WATCHDOG_CRITICAL |
drupal/ |
Log message severity -- Critical conditions. | ||
| WATCHDOG_ERROR |
drupal/ |
Log message severity -- Error conditions. | 25 | |
| WATCHDOG_WARNING |
drupal/ |
Log message severity -- Warning conditions. | 18 | |
| WATCHDOG_NOTICE |
drupal/ |
Log message severity -- Normal but significant conditions. | 34 | |
| WATCHDOG_INFO |
drupal/ |
Log message severity -- Informational messages. | 6 | |
| WATCHDOG_DEBUG |
drupal/ |
Log message severity -- Debug-level messages. | 2 | |
| DRUPAL_BOOTSTRAP_CONFIGURATION |
drupal/ |
First bootstrap phase: initialize configuration. | 4 | |
| DRUPAL_BOOTSTRAP_KERNEL |
drupal/ |
Second bootstrap phase, initalize a kernel. | 1 | |
| DRUPAL_BOOTSTRAP_PAGE_CACHE |
drupal/ |
Third bootstrap phase: try to serve a cached page. | 1 | |
| DRUPAL_BOOTSTRAP_DATABASE |
drupal/ |
Fourth bootstrap phase: initialize database layer. | 3 | |
| DRUPAL_BOOTSTRAP_VARIABLES |
drupal/ |
Fifth bootstrap phase: initialize the variable system. | 4 | |
| DRUPAL_BOOTSTRAP_SESSION |
drupal/ |
Sixth bootstrap phase: initialize session handling. | 3 | |
| DRUPAL_BOOTSTRAP_CODE |
drupal/ |
Eighth bootstrap phase: load code for subsystems and modules. | 3 | |
| DRUPAL_BOOTSTRAP_FULL |
drupal/ |
Final bootstrap phase: initialize language, path, theme, and modules. | 7 | |
| DRUPAL_ANONYMOUS_RID |
drupal/ |
Role ID for anonymous users; should match what's in the "role" table. | 46 | |
| DRUPAL_AUTHENTICATED_RID |
drupal/ |
Role ID for authenticated users; should match what's in the "role" table. | 34 |