Here is a list of all documented variables with links to the class documentation for each member:

- c -

CACHE_INSTANCES : core_search\base_block
CACHED_ASSETS_FILEAREA : core_h5p\file_storage
CACHEKEY_TOUR : tool_usertours\cache
CACHENAME_STEP : tool_usertours\cache
CACHENAME_TOUR : tool_usertours\cache
CACHETIME : navigation_cache
CACHEUSERID : navigation_cache
CACHEVALUE : navigation_cache
CALENDAR : Google_Service_Calendar
CALENDAR_READONLY : Google_Service_Calendar
CAN_COPY : core_contentbank\contenttype
CAN_DOWNLOAD : core_contentbank\contenttype
CAN_EDIT : core_contentbank\contenttype
CAN_UPLOAD : core_contentbank\contenttype
CAPITALIZE_PERCENT_ENCODING : GuzzleHttp\Psr7\UriNormalizer
CAPTURE_STATUS_COMPLETED : paygw_paypal\paypal_helper
CASE_SENSITIVE : core_collator
CELL_TYPE_INLINE_STRING : OpenSpout\Reader\XLSX\Helper\CellValueFormatter
CELL_TYPE_STRING : OpenSpout\Reader\ODS\Helper\CellValueFormatter
CERT : GuzzleHttp\RequestOptions
CHAR_MAX_LENGTH : xmldb_field
CHECKED : core_reportbuilder\local\filters\boolean_select, mod_h5pactivity\output\result
CHECKGROUP_FORM : tool_brickfield\area_base
CHECKGROUP_IMAGE : tool_brickfield\area_base
CHECKGROUP_LAYOUT : tool_brickfield\area_base
CHECKGROUP_LINK : tool_brickfield\area_base
CHECKGROUP_MEDIA : tool_brickfield\area_base
CHECKGROUP_NAMES : tool_brickfield\area_base
CHECKGROUP_TABLE : tool_brickfield\area_base
CHECKGROUP_TEXT : tool_brickfield\area_base
CHECKGROUP_UNKNOWN : tool_brickfield\area_base
CHECKSUM_ALGORITHMS : mod_bigbluebuttonbn\local\config
CHUNKSIZE : core\task\logmanager
CIPHER : backup
CIPHERKEYLEN : backup
CLASSROOM_COURSES : Google_Service_Classroom
CLASSROOM_COURSES_READONLY : Google_Service_Classroom
CLASSROOM_PROFILE_EMAILS : Google_Service_Classroom
CLASSROOM_PROFILE_PHOTOS : Google_Service_Classroom
CLASSROOM_ROSTERS : Google_Service_Classroom
CLASSROOM_ROSTERS_READONLY : Google_Service_Classroom
CLIENT_MAX_SKIPTIME : block_rss_client\task\refreshfeeds
CLOUD_DEBUGGER : Google_Service_Clouddebugger
CLOUD_DEBUGLETCONTROLLER : Google_Service_Clouddebugger
CLOUD_PLATFORM : Google_Service_Appengine, Google_Service_Bigquery, Google_Service_Cloudbilling, Google_Service_Clouddebugger, Google_Service_CloudMonitoring, Google_Service_Cloudresourcemanager, Google_Service_Cloudtrace, Google_Service_CloudUserAccounts, Google_Service_Compute, Google_Service_Computeaccounts, Google_Service_Container, Google_Service_Dataflow, Google_Service_Datastore, Google_Service_DeploymentManager, Google_Service_Dns, Google_Service_Genomics, Google_Service_Manager, Google_Service_Pubsub, Google_Service_Replicapool, Google_Service_Replicapoolupdater, Google_Service_Resourceviews, Google_Service_SQLAdmin, Google_Service_Storage, Google_Service_Storagetransfer
CLOUD_PLATFORM_READ_ONLY : Google_Service_Bigquery, Google_Service_CloudUserAccounts, Google_Service_DeploymentManager, Google_Service_Dns, Google_Service_Manager, Google_Service_Replicapool, Google_Service_Replicapoolupdater, Google_Service_Resourceviews, Google_Service_Storage
CLOUD_USERACCOUNTS : Google_Service_CloudUserAccounts
CLOUD_USERACCOUNTS_READONLY : Google_Service_CloudUserAccounts
CM_CREATED : block_recent_activity_observer
CM_DELETED : block_recent_activity_observer
CM_UPDATED : block_recent_activity_observer
COGNITIVE_LEVEL_1 : core_analytics\local\indicator\community_of_inquiry_activity
COGNITIVE_LEVEL_2 : core_analytics\local\indicator\community_of_inquiry_activity
COGNITIVE_LEVEL_3 : core_analytics\local\indicator\community_of_inquiry_activity
COGNITIVE_LEVEL_4 : core_analytics\local\indicator\community_of_inquiry_activity
COGNITIVE_LEVEL_5 : core_analytics\local\indicator\community_of_inquiry_activity
COLUMN_FIELD_DELIMETER : core_reportbuilder\local\aggregation\groupconcat
COLUMN_NULL_COALESCE : core_reportbuilder\local\aggregation\groupconcat
COMBINED_BUT_NOT_CHOICE_FEEDBACK : qtype_multichoice
COMBINED_PDF_FILEAREA : assignfeedback_editpdf\document_services
COMBINED_PDF_FILENAME : assignfeedback_editpdf\document_services
COMMUNICATION_STATUS_PENDING : core_communication\constants
COMMUNICATION_STATUS_READY : core_communication\constants
COMPLETION_EVENT_TYPE_DATE_COMPLETION_EXPECTED : core_completion\api
COMPLETION_REPORT_PAGE : report_progress\local\helper
COMPONENT : assignfeedback_editpdf\document_services, core_h5p\file_storage, mod_bigbluebuttonbn\plugin
COMPONENT_NAME : auth_plugin_manual
COMPRESSED_PATCHED_DATA : ZipStream\GeneralPurposeBitFlag
COMPRESSION_GZIP : core\session\redis
COMPRESSION_NONE : core\session\redis
COMPRESSION_ZSTD : core\session\redis
COMPRESSOR_NONE : cachestore_redis
COMPRESSOR_PHP_GZIP : cachestore_redis
COMPRESSOR_PHP_ZSTD : cachestore_redis
COMPUTE : Google_Service_Autoscaler, Google_Service_Compute, Google_Service_Manager, Google_Service_Replicapool, Google_Service_Resourceviews
COMPUTE_READONLY : Google_Service_Autoscaler, Google_Service_Compute, Google_Service_Replicapool, Google_Service_Resourceviews
COMPUTEACCOUNTS : Google_Service_Computeaccounts
COMPUTEACCOUNTS_READONLY : Google_Service_Computeaccounts
CONFIG_FILE_NAME : core_analytics\model_config
CONFIRM_NEW_FIELDS : core\hub\registration
CONFIRMATIONFOLDER : tool_messageinbound\manager
CONNECT_TIMEOUT : GuzzleHttp\RequestOptions
CONNECTION_ERROR_MESSAGE : IMSGlobal\LTI\ToolProvider\ToolProvider
CONSTRUCT_ALL : SimplePie
CONSTRUCT_BASE64 : SimplePie
CONSTRUCT_HTML : SimplePie
CONSTRUCT_IRI : SimplePie
CONSTRUCT_MAYBE_HTML : SimplePie
CONSTRUCT_NONE : SimplePie
CONSTRUCT_TEXT : SimplePie
CONSTRUCT_XHTML : SimplePie
CONSUMER_TABLE_NAME : IMSGlobal\LTI\ToolProvider\DataConnector\DataConnector
CONTENT : Google_Service_ShoppingContent
CONTENT_FILEAREA : core_h5p\file_storage
CONTENT_HUB_METADATA_CACHE : H5PEditorEndpoints
CONTENT_TYPE_CACHE : H5PEditorEndpoints
CONTEXT_BOOST : search_solr\engine
CONTEXT_ROLE_INSTRUCTOR : ltiservice_memberships\local\service\memberships
CONTEXT_ROLE_LEARNER : ltiservice_memberships\local\service\memberships
CONTEXT_ROLE_PREFIX : ltiservice_memberships\local\service\memberships
CONTEXT_TABLE_NAME : IMSGlobal\LTI\ToolProvider\DataConnector\DataConnector
CONVERT_EMPTY_PATH : GuzzleHttp\Psr7\UriNormalizer
COOKIE_METHOD_EXPLICIT_PARTITIONING : auth_lti\local\ltiadvantage\utility\cookie_helper
COOKIE_METHOD_NO_PARTITIONING : auth_lti\local\ltiadvantage\utility\cookie_helper
COOKIE_METHOD_NOT_SUPPORTED : auth_lti\local\ltiadvantage\utility\cookie_helper
COOKIES : GuzzleHttp\RequestOptions
COORDINATE : Google_Service_Coordinate
COORDINATE_READONLY : Google_Service_Coordinate
CORE_LICENSE : license_manager
CORRECT : mod_h5pactivity\output\result
COURSE_BOOST : search_solr\engine
COURSE_CACHE_LOCK_EXPIRY : course_modinfo
COURSE_CACHE_LOCK_WAIT : course_modinfo
COURSE_COMMUNICATION_COMPONENT : core_communication\constants
COURSE_COMMUNICATION_INSTANCETYPE : core_communication\constants
COURSE_CURRENT : navigation_node
COURSE_INDEX_PAGE : navigation_node
COURSE_MY : navigation_node
COURSE_OTHER : navigation_node
COURSES_PER_PAGE : block_timeline\output\main
CREATE : file_archive
CREATED_FIELD_NAME : core_search\base_activity
CRITICAL : core\check\result, Google_Logger_Abstract
CRLF : PHPMailer\PHPMailer\PHPMailer
CROP_BOX : PageBoundaries
CSS_FILEAREA : core_h5p\file_storage
CURRENTTIMESTAMP : feedback_item_info
CUSTOM_INCLUDE : core_user\fields
CUSTOM_LICENSE : license_manager
CUSTOMLINK_TABLE : communication_customlink\communication_feature
CUTOFF : report_loglive_renderable