Documentation & API reference
Constants
Primary tabs
| Name | Location | Description | Direct uses |
Strings |
|---|---|---|---|---|
| FILTER_TYPE_MARKUP_LANGUAGE |
drupal/ |
Non-HTML markup language filters that generate HTML. | 4 | |
| FILTER_TYPE_HTML_RESTRICTOR |
drupal/ |
HTML tag and attribute restricting filters. | 5 | |
| FILTER_TYPE_TRANSFORM_REVERSIBLE |
drupal/ |
Reversible transformation filters. | ||
| FILTER_TYPE_TRANSFORM_IRREVERSIBLE |
drupal/ |
Irreversible transformation filters. | 1 | |
| LANGUAGE_NEGOTIATION_URL |
drupal/ |
The language is determined using path prefix or domain. | 3 | |
| LANGUAGE_NEGOTIATION_BROWSER |
drupal/ |
The language is set based on the browser language settings. | 1 | |
| LANGUAGE_NEGOTIATION_INTERFACE |
drupal/ |
The language is determined using the current interface language. | 2 | |
| LANGUAGE_NEGOTIATION_URL_FALLBACK |
drupal/ |
If no URL language, language is determined using an already detected one. | 1 | |
| LANGUAGE_NEGOTIATION_USER |
drupal/ |
The language is set based on the user language settings. | 1 | |
| LANGUAGE_NEGOTIATION_USER_ADMIN |
drupal/ |
The language is set based on the user admin language settings. | 1 | |
| LANGUAGE_NEGOTIATION_SESSION |
drupal/ |
The language is set based on the request/session parameters. | 1 | |
| LANGUAGE_NEGOTIATION_URL_PREFIX |
drupal/ |
URL language negotiation: use the path prefix as URL language indicator. | 6 | |
| LANGUAGE_NEGOTIATION_URL_DOMAIN |
drupal/ |
URL language negotiation: use the domain as URL language indicator. | 7 | |
| 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 | |
| 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 | |
| FILE_URL_TEST_CDN_1 |
drupal/ |
2 | ||
| FILE_URL_TEST_CDN_2 |
drupal/ |
3 | ||
| SEARCH_TYPE |
drupal/ |
1 | ||
| SEARCH_TYPE_2 |
drupal/ |
1 | ||
| SEARCH_TYPE_JPN |
drupal/ |
1 | ||
| PREG_CLASS_UNICODE_WORD_BOUNDARY |
drupal/ |
Matches Unicode characters that are word boundaries. | 3 | 1 |
| 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. | 2 | 1 |
| STREAM_WRAPPERS_WRITE_VISIBLE |
drupal/ |
Stream wrapper type flag -- visible, readable and writeable. | 4 | 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. | 3 | 1 |
| REQUEST_TIME |
drupal/ |
Time of the current request in seconds elapsed since the Unix Epoch. | 130 | 1 |
| MAIL_LINE_ENDINGS |
drupal/ |
Auto-detect appropriate line endings for e-mails. | 3 | 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. | 9 | 1 |
| MENU_LOCAL_TASK |
drupal/ |
Menu type -- A task specific to the parent item, usually rendered as a tab. | 30 | 1 |
| MENU_DEFAULT_LOCAL_TASK |
drupal/ |
Menu type -- The "default" local task, which is initially active. | 32 | 1 |
| MENU_LOCAL_ACTION |
drupal/ |
Menu type -- An action specific to the parent, usually rendered as a link. | 19 | 1 |
| OPENID_DH_DEFAULT_MOD |
drupal/ |
Diffie-Hellman Key Exchange Default Value. | 2 | 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 |
| 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 |