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

- i -

ICON_FILENAME : core_h5p\file_storage
ICONV_OK : HTMLPurifier_Encoder
ICONV_TRUNCATES : HTMLPurifier_Encoder
ICONV_UNUSABLE : HTMLPurifier_Encoder
ID_SCOPE_CONTEXT : IMSGlobal\LTI\ToolProvider\ToolProvider
ID_SCOPE_GLOBAL : IMSGlobal\LTI\ToolProvider\ToolProvider
ID_SCOPE_ID_ONLY : IMSGlobal\LTI\ToolProvider\ToolProvider
ID_SCOPE_RESOURCE : IMSGlobal\LTI\ToolProvider\ToolProvider
ID_SCOPE_SEPARATOR : IMSGlobal\LTI\ToolProvider\ToolProvider
ID_SEPARATOR : core_question\local\bank\column_base
IDN_CONVERSION : GuzzleHttp\RequestOptions
IDTYPE_CMID : mod_bigbluebuttonbn\instance
IDTYPE_INSTANCEID : mod_bigbluebuttonbn\instance
IMAGE_PAGE : assignfeedback_editpdf\pdf
IMMEDIATELY_AFTER : mod_quiz\admin\review_setting, mod_quiz\question\display_options
IMMEDIATELY_AFTER_PERIOD : mod_quiz\quiz_attempt
IMPORT_HTML_FILEAREA : assignfeedback_editpdf\document_services
IMPORTALL : tool_customlang\local\importer
IMPORTNEW : tool_customlang\local\importer
IMPORTUPDATE : tool_customlang\local\importer
IMSENTERPRISE_ADD : enrol_imsenterprise_plugin
IMSENTERPRISE_DELETE : enrol_imsenterprise_plugin
IMSENTERPRISE_UPDATE : enrol_imsenterprise_plugin
IN : webservice_soap\wsdl
IN_PROGRESS : mod_quiz\quiz_attempt
INACTIVE_SUBSCRIPTION_LIFESPAN_IN_DAYS : tool_monitor\subscription_manager
INCLUDE_IMPORTED_RECORDINGS : mod_bigbluebuttonbn\recording
INCORRECT : mod_h5pactivity\output\result
INDETERMINATE : core\progress\base, file_progress
INDEX_COMPOSED_MAX_BYTES : xmldb_index
INDEX_MAX_BYTES : xmldb_index
INDEX_PRIORITY_NORMAL : core_search\manager
INDEX_PRIORITY_REINDEXING : core_search\manager
INDEXED_FILE_ERROR : search_solr\document
INDEXED_FILE_FALSE : search_solr\document
INDEXED_FILE_TRUE : search_solr\document
INDICATOR_COGNITIVE : core_analytics\local\indicator\community_of_inquiry_activity
INDICATOR_SOCIAL : core_analytics\local\indicator\community_of_inquiry_activity
INFO : core\check\result, core\notification, core\update\validator, Google_Logger_Abstract
INHERIT : tool_dataprivacy\context_instance
INSTANCE_STATUS_ACTIVE : gradingform_instance
INSTANCE_STATUS_ARCHIVE : gradingform_instance
INSTANCE_STATUS_INCOMPLETE : gradingform_instance
INSTANCE_STATUS_NEEDUPDATE : gradingform_instance
INSTRUCTOR_CAPABILITY : ltiservice_memberships\local\service\memberships
INSTRUCTOR_DELEGATE_INCLUDED : ltiservice_memberships\local\service\memberships
INSTRUCTOR_INCLUDED : ltiservice_memberships\local\service\memberships
INTEGER_MAX_LENGTH : xmldb_field
INVALID : tool_brickfield\registration
INVALIDATION_USERDATARESET : mod_quiz\local\override_cache
IO_BYTES_NOT_SUPPORTED : cache_store
IS_EMPTY : core_reportbuilder\local\filters\number
IS_NOT_EMPTY : core_reportbuilder\local\filters\number
IS_SEARCHABLE : cache_store