Contains filters are case sensitive
Name Locationsort descending Description
UNICODE_SINGLEBYTE includes/unicode.inc Indicates that standard PHP (emulated) unicode support is being used.
UNICODE_MULTIBYTE includes/unicode.inc Indicates that full unicode support with the PHP mbstring extension is being used.
REQUIRED_D7_SCHEMA_VERSION includes/update.inc Minimum schema version of Drupal 7 required for upgrade to Backdrop.
MAINTENANCE_MODE ./install.php Global flag to indicate the site is in installation mode.
BACKDROP_ROOT ./install.php Defines the root directory of the Backdrop installation.
CKEDITOR_VERSION modules/ckeditor/ckeditor.module
COMMENT_NODE_CLOSED modules/comment/comment.module Comments for this node are closed.
COMMENT_ANONYMOUS_MAY_CONTACT modules/comment/comment.module Anonymous posters may leave their contact information.
COMMENT_ANONYMOUS_MAYNOT_CONTACT modules/comment/comment.module Anonymous posters cannot enter their contact information.
COMMENT_MODE_THREADED modules/comment/comment.module Comments are displayed as a threaded list - expanded.
COMMENT_NOT_PUBLISHED modules/comment/comment.module Comment is awaiting approval.
COMMENT_PUBLISHED modules/comment/comment.module Comment is published.
COMMENT_MODE_FLAT modules/comment/comment.module Comments are displayed in a flat list - expanded.
COMMENT_NODE_HIDDEN modules/comment/comment.module Comments for this node are hidden.
COMMENT_FORM_BELOW modules/comment/comment.module Comment form should be shown below post or list of comments.
COMMENT_NODE_OPEN modules/comment/comment.module Comments for this node are open.
COMMENT_FORM_SEPARATE_PAGE modules/comment/comment.module Comment form should be displayed on a separate page.
COMMENT_ANONYMOUS_MUST_CONTACT modules/comment/comment.module Anonymous posters are required to leave their contact information.
FIELD_STORAGE_UPDATE modules/field/field.attach.inc Argument for an update operation.
FIELD_STORAGE_INSERT modules/field/field.attach.inc Argument for an insert operation.
FIELD_LOAD_CURRENT modules/field/field.module Age argument for loading the most recent version of an entity's field data with field_attach_load().
FIELD_LOAD_REVISION modules/field/field.module Age argument for loading the version of an entity's field data specified in the entity with field_attach_load().
FIELD_CARDINALITY_UNLIMITED modules/field/field.module Value for field API indicating a field accepts an unlimited number of values.
FIELD_BEHAVIOR_DEFAULT modules/field/field.module Value for field API concerning widget default and multiple value settings.
FIELD_BEHAVIOR_NONE modules/field/field.module Value for field API indicating a widget doesn't accept default values.
FIELD_BEHAVIOR_CUSTOM modules/field/field.module Value for field API indicating a widget can receive several field values.
IMAGE_STORAGE_MODULE modules/image/image.module Image style constant to represent any module-based preset.
IMAGE_STORAGE_NORMAL modules/image/image.module Image style constant for user presets.
IMAGE_STORAGE_OVERRIDE modules/image/image.module Image style constant for user presets that override module-defined presets.
IMAGE_STORAGE_DEFAULT modules/image/image.module Image style constant for module-defined presets.
LAYOUT_TITLE_CUSTOM modules/layout/layout.module Layout constant indicating the title of the layout is manually specified.
LAYOUT_TITLE_DEFAULT modules/layout/layout.module Layout constant indicating the title of the layout is the default.
LAYOUT_STORAGE_DEFAULT modules/layout/layout.module Layout constant for module-defined layouts.
LAYOUT_STORAGE_OVERRIDE modules/layout/layout.module Layout constant for layouts that override module-defined presets.
LAYOUT_TITLE_NONE modules/layout/layout.module Layout constant indicating the title of the layout is not shown.
LAYOUT_TITLE_BLOCK modules/layout/layout.module Layout constant indicating the title of the layout comes from a block.
LAYOUT_STORAGE_NORMAL modules/layout/layout.module Layouts constant for user-defined layouts.
LINK_EMAIL modules/link/link.module
LINK_NEWS modules/link/link.module
LINK_TARGET_DEFAULT modules/link/link.module
LINK_INTERNAL modules/link/link.module
LINK_URL_MAX_LENGTH modules/link/link.module Maximum URLs length - needs to match value in link.install.
LINK_TARGET_USER modules/link/link.module
LINK_TARGET_TOP modules/link/link.module
LINK_TARGET_NEW_WINDOW modules/link/link.module
LINK_EXTERNAL modules/link/link.module
LINK_FRONT modules/link/link.module
MENU_MAX_MENU_NAME_LENGTH_UI modules/menu/menu.module Maximum length of menu name as entered by the user. Database length is 32 and we add a menu- prefix.
NODE_NOT_PROMOTED modules/node/node.module Denotes that the node is not promoted.
NODE_STICKY modules/node/node.module Denotes that the node is sticky at the top of the page.

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