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

- l -

LABELLED_FILEAREA : core_analytics\dataset_manager
LANG_STRING_REGEX : tool_usertours\helper
LAST_TRY : question_attempt
LASTACCESS : cache_session
LATER_WHILE_OPEN : mod_quiz\admin\review_setting, mod_quiz\question\display_options
LESS_THAN : core_reportbuilder\local\filters\number
LEVEL : core\context\block, core\context\course, core\context\coursecat, core\context\module, core\context\system, core\context\user
LEVEL_OTHER : core\event\base
LEVEL_PARTICIPATING : core\event\base
LEVEL_TEACHING : core\event\base
LIBRARY_FILEAREA : core_h5p\file_storage
LIBRARY_INSTALL : H5PEditorEndpoints
LIBRARY_UPLOAD : H5PEditorEndpoints
LICENSE_DISABLED : license_manager
LICENSE_ENABLED : license_manager
LICENSE_MOVE_DOWN : license_manager
LICENSE_MOVE_UP : license_manager
LINE_COMMENTS : ScssPhp\ScssPhp\Compiler
LINENO : HTMLPurifier_ErrorCollector
LINK : mod_quiz\repaginate
LINKBACK : SimplePie
LINKPLACEHOLDER : core_media_player
LOAD_ALL_CATEGORIES : global_navigation
LOAD_ROOT_CATEGORIES : global_navigation
LOCATOR_ALL : SimplePie
LOCATOR_AUTODISCOVERY : SimplePie
LOCATOR_LOCAL_BODY : SimplePie
LOCATOR_LOCAL_EXTENSION : SimplePie
LOCATOR_NONE : SimplePie
LOCATOR_REMOTE_BODY : SimplePie
LOCATOR_REMOTE_EXTENSION : SimplePie
LOCK_SETTINGS_MEETING_DATA : mod_bigbluebuttonbn\meeting
LOG_SUMMARY_TEMP_TABLE : forumreport_summary\summary_table
LOG_TO_STRING : mod_bigbluebuttonbn\logger
logger : ScssPhp\ScssPhp\Compiler
LOGIN_KEY_TTL : tool_mobile\api
LOGIN_QR_KEY_TTL : tool_mobile\api
LOGIN_VIA_APP : tool_mobile\api
LOGIN_VIA_BROWSER : tool_mobile\api
LOGIN_VIA_EMBEDDED_BROWSER : tool_mobile\api
LOGINONLY : core\oauth2\issuer
LOW : question_cbm
LOW_CURL_VERSION_NUMBER : GuzzleHttp\Handler\CurlFactory
LOW_PRIORITY : data_field_base
LOWERCASE : SimplePie
LTI_LINK_MEDIA_TYPE : IMSGlobal\LTI\ToolProvider\ContentItem
LTI_VERSION1 : IMSGlobal\LTI\ToolProvider\ToolProvider
LTI_VERSION2 : IMSGlobal\LTI\ToolProvider\ToolProvider
LTI_VERSION2P0 : mod_lti\local\ltiservice\service_base