Documentation & API reference
Constants
Primary tabs
| Name | Location | Description | Direct uses |
Strings |
|---|---|---|---|---|
| VERSION |
drupal/ |
The current system version. | 42 | 171 |
| MAINTENANCE_MODE |
drupal/ |
Global flag to identify update.php and authorize.php runs. | 6 | 17 |
| MAINTENANCE_MODE |
drupal/ |
Global flag to indicate the site is in installation mode. | 6 | 17 |
| MAINTENANCE_MODE |
drupal/ |
Global flag indicating that update.php is being run. | 6 | 17 |
| REQUEST_TIME |
drupal/ |
Time of the current request in seconds elapsed since the Unix Epoch. | 140 | 4 |
| REQUEST_TIME |
drupal/ |
140 | 4 | |
| DRUPAL_ROOT |
drupal/ |
Defines the root directory of the Drupal installation. | 111 | 2 |
| PHPUnit_MAIN_METHOD |
drupal/ |
2 | ||
| STREAM_WRAPPERS_HIDDEN |
drupal/ |
Stream wrapper type flag -- not visible in the UI or accessible via web, but readable and writable. E.g. the temporary directory for uploads. | 1 | 1 |
| STREAM_WRAPPERS_LOCAL_HIDDEN |
drupal/ |
Stream wrapper type flag -- hidden, readable and writeable using local files. | 3 | 1 |
| STREAM_WRAPPERS_WRITE_VISIBLE |
drupal/ |
Stream wrapper type flag -- visible, readable and writeable. | 5 | 1 |
| STREAM_WRAPPERS_READ_VISIBLE |
drupal/ |
Stream wrapper type flag -- visible and read-only. | 1 | 1 |
| STREAM_WRAPPERS_NORMAL |
drupal/ |
Stream wrapper type flag -- the default when 'type' is omitted from hook_stream_wrappers(). This does not include STREAM_WRAPPERS_LOCAL, because PHP grants a greater trust level to local files (for example, they can be used in an… | 1 | 1 |
| STREAM_WRAPPERS_LOCAL_NORMAL |
drupal/ |
Stream wrapper type flag -- visible, readable and writeable using local files. | 2 | 1 |
| MENU_NORMAL_ITEM |
drupal/ |
Menu type -- A "normal" menu item that's shown in menu and breadcrumbs. | 6 | 1 |
| MENU_SUGGESTED_ITEM |
drupal/ |
Menu type -- A normal menu item, hidden until enabled by an administrator. | 8 | 1 |
| MENU_LOCAL_TASK |
drupal/ |
Menu type -- A task specific to the parent item, usually rendered as a tab. | 28 | 1 |
| MENU_DEFAULT_LOCAL_TASK |
drupal/ |
Menu type -- The "default" local task, which is initially active. | 36 | 1 |
| MENU_LOCAL_ACTION |
drupal/ |
Menu type -- An action specific to the parent, usually rendered as a link. | 17 | 1 |
| MENU_SIBLING_LOCAL_TASK |
drupal/ |
Menu type -- A task specific to the parent, which is never rendered. | 2 | 1 |
| DRUPAL_CORE_COMPATIBILITY |
drupal/ |
Core API compatibility. | 12 | 1 |
| FIELD_LOAD_CURRENT |
drupal/ |
Load the most recent version of an entity's field data. | 15 | 1 |
| FIELD_LOAD_REVISION |
drupal/ |
Load the version of an entity's field data specified in the entity. | 3 | 1 |
| PREG_CLASS_NUMBERS |
drupal/ |
Matches all 'N' Unicode character classes (numbers) | 1 | 1 |
| PREG_CLASS_PUNCTUATION |
drupal/ |
Matches all 'P' Unicode character classes (punctuation) | 1 | 1 |
| PREG_CLASS_CJK |
drupal/ |
Matches CJK (Chinese, Japanese, Korean) letter-like characters. | 2 | 1 |
| HISTORY_READ_LIMIT |
drupal/ |
Entities changed before this time are always shown as read. | 6 | 1 |
| EMAIL_MAX_LENGTH |
drupal/ |
Maximum length of user e-mail text field. | 2 | 1 |
| LOCALE_JS_OBJECT_CONTEXT |
drupal/ |
Regular expression to match an object containing a key 'context'. | 1 | 1 |
| IMAGE_STORAGE_EDITABLE |
drupal/ |
Image style constant to represent an editable preset. | 1 | 1 |
| IMAGE_STORAGE_MODULE |
drupal/ |
Image style constant to represent any module-based preset. | 1 | |
| IMAGE_DERIVATIVE_TOKEN |
drupal/ |
The name of the query parameter for image derivative tokens. | 1 | 1 |
| MAIL_LINE_ENDINGS |
drupal/ |
Auto-detect appropriate line endings for e-mails. | 3 | 1 |
| ARCHIVE_TAR_ATT_SEPARATOR |
drupal/ |
1 | 1 | |
| ARCHIVE_TAR_END_BLOCK |
drupal/ |
1 | 1 | |
| 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 |
| ERR_SELECT_FAILED |
drupal/ |
1 | 1 | |
| ERR_TIMEOUT |
drupal/ |
1 | 1 | |
| ERR_READ_FAILED |
drupal/ |
1 | 1 | |
| ERR_WRITE_FAILED |
drupal/ |
1 | 1 | |
| VIEWS_HANDLER_RENDER_TEXT_PHASE_SINGLE_ITEM |
drupal/ |
Indicator of the renderText() method for rendering a single item. (If no render_item() is present). | 1 | 1 |
| VIEWS_HANDLER_RENDER_TEXT_PHASE_COMPLETELY |
drupal/ |
Indicator of the renderText() method for rendering the whole element. (if no render_item() method is available). | 1 | 1 |
| VIEWS_HANDLER_RENDER_TEXT_PHASE_EMPTY |
drupal/ |
Indicator of the renderText() method for rendering the empty text. | 2 | 1 |
| REQUIREMENT_INFO |
drupal/ |
Requirement severity -- Informational message only. | 3 | |
| REQUIREMENT_OK |
drupal/ |
Requirement severity -- Requirement successfully met. | 2 | |
| REQUIREMENT_WARNING |
drupal/ |
Requirement severity -- Warning condition; proceed but flag warning. | 12 | |
| REQUIREMENT_ERROR |
drupal/ |
Requirement severity -- Error condition; abort installation. | 19 | |
| FILE_EXIST |
drupal/ |
File permission check -- File exists. | 6 | |
| FILE_READABLE |
drupal/ |
File permission check -- File is readable. | 7 |