Here is a list of all struct and union fields with links to the structures/unions they belong to:

- u -

• ui() : workshop_allocator , workshop_manual_allocator
• UI() : adodb_perf
• ui() : workshop_random_allocator
• UI_HTML_CHECKBOX : base_setting
• UI_HTML_DROPDOWN : base_setting
• UI_HTML_RADIOBUTTON : base_setting
• UI_HTML_TEXTFIELD : base_setting
• UI_NONE : base_setting
• unalias() : user_picture
• unassign_role_from_user() : course_enrolment_manager
• unassign_roles() : core_role_external
• unassign_roles_parameters() : core_role_external
• unassign_roles_returns() : core_role_external
• uncomment_rfc822() : SimplePie_Misc
• Uncompress() : SimplePie_Net_IPv6
• unconsume() : SimplePie_Decode_HTML_Entities
• UNDECIPHERABLE_TLD : Zend_Validate_Hostname
• Underline : cc_qti_values
• underscoredToLowerCamelCase() : t3lib_div
• underscoredToUpperCamelCase() : t3lib_div
• undo() : moodle_image
• undo_value_formatting() : iCalendar_parameter
• undomq() : adodb_perf
• unenrol_user() : enrol_guest_plugin , course_enrolment_manager , enrol_mnet_mnetservice_enrol , enrol_plugin
• unexpected_event() : question_behaviour_attempt_updater
• unfinalize() : assignment_upload
• unfreeze() : HTML_QuickForm_group , HTML_QuickForm_element
• unget() : JSTokenizer
• unhash() : Markdown_Parser
• unhtmlentities() : TCPDF , qformat_learnwise
• UniArrSubString() : TCPDF
• unichr() : HTMLPurifier_Encoder , TCPDF
• UNIONPAY : Zend_Validate_CreditCard
• uniqueArray() : t3lib_div
• uniqueList() : t3lib_div
• UNITGRADED : qtype_numerical
• UNITGRADEDOUTOFMARK : qtype_numerical
• UNITGRADEDOUTOFMAX : qtype_numerical
• UNITINPUT : qtype_numerical
• UNITNONE : qtype_numerical
• UNITOPTIONAL : qtype_numerical
• UNITRADIO : qtype_numerical
• UNITSELECT : qtype_numerical
• UnitTestCase() : UnitTestCase
• UnixDate() : ADORecordset_mssql , ADORecordSet_array_mssql , ADODB_sybase , ADORecordset_sybase , ADORecordSet_array_sybase
• unixifyCoverageData() : CoverageRecorder
• unixifyPath() : Utility
• UnixTimeStamp() : ADORecordset_mssql , ADORecordSet_array_mssql , ADODB_sybase , ADORecordset_sybase , ADORecordSet_array_sybase
• UNKNOWN : technical_role , Zend_Validate_File_Upload
• unknown() : SimplePie_Content_Type_Sniffer
• UNKNOWN_CONTENT_LENGTH : Zend_Amf_Constants
• UNKNOWN_ERROR : Zend_Gdata_Gapps_Error
• UNKNOWN_OPERATION : Zend_Amf_Value_Messaging_CommandMessage
• UNKNOWN_TLD : Zend_Validate_Hostname
• unlimited : cc_qti_values
• unlink() : SimplePie_Cache_File , SimplePie_Cache_MySQL , Zend_Service_Amazon_S3_Stream , Zend_Service_Nirvanix_Namespace_Imfs , Zend_Service_WindowsAzure_Storage_Blob_Stream
• unlink_node() : php4DOMNode
• unlink_tempfile() : t3lib_div
• unlocalize() : calc_formula
• unlock() : webdav_client
• unmangle_pathname() : file_archive
• unmonitor() : Zend_Service_Amazon_Ec2_Instance
• unpack() : HTMLPurifier_AttrDef_URI_Email
• unQuoteFilenames() : t3lib_div
• unregisterAsClient() : Zend_Service_Amazon_S3 , Zend_Service_WindowsAzure_Storage_Blob
• unregisterNamespace() : Zend_Loader_Autoloader
• unregisterStreamWrapper() : Zend_Service_Amazon_S3 , Zend_Service_WindowsAzure_Storage_Blob
• unserialize() : iCalendar_component , Net_GeoIP_Location
• unset_parameter() : OAuthRequest
• unsetBrowser() : WebTestCase
• unsetTest() : SimpleTestContext
• unshiftAutoloader() : Zend_Loader_Autoloader
• UNSUSBSCRIBE_OPERATION : Zend_Amf_Value_Messaging_CommandMessage
• UnumberToChar() : t3lib_cs
• unxmlise() : qformat_examview
• Update() : ADODB_Active_Record
• update() : calendar_event , gradingform_instance , gradingform_rubric_instance , data_object , grade_category , grade_grade , grade_item , grade_object , grade_outcome , grade_scale , progress_bar , lesson_page , lesson_page_type_branchtable , lesson_page_type_endofbranch , lesson_page_type_endofcluster , lesson_page_type_essay , lesson_page_type_matching , lesson_page_type_truefalse
• update_all_attempts_at_quiz() : question_engine_attempt_upgrader
• update_attribute() : cc_version1
• update_attribute_ns() : cc_version1
• update_boundaryBox() : graph
• update_category() : question_category_object
• update_child_item() : cc_version1
• update_cm_from_form() : condition_info
• update_config() : completion_criteria_course , completion_criteria_date , completion_criteria_duration , completion_criteria_grade , completion_criteria_role , completion_criteria_self , completion_criteria_unenrol , completion_criteria , completion_criteria_activity
• update_content() : data_field_checkbox , data_field_date , data_field_file , data_field_latlong , data_field_multimenu , data_field_number , data_field_picture , data_field_textarea , data_field_url , data_field_base
• update_dataset_options() : qtype_calculated
• update_definition() : gradingform_controller , gradingform_rubric_controller
• update_enrollable_course_publication() : course_publish_manager
• update_enrolments() : auth_plugin_mnet
• update_external_service() : webservice
• update_field() : data_field_picture , data_field_base
• update_final_grade() : grade_item
• update_flag() : question_flags
• update_from_db() : data_object , grade_object
• update_full() : progress_bar
• update_grade() : assignment_base
• update_grading_grades() : workshop_best_evaluation
• update_instance() : assignment_base
• update_items() : cc_version1 , cc_version11
• update_iterator_row() : restore_decode_content
• update_log_url() : portfolio_exporter
• update_main_listing() : assignment_base
• update_mnet_session() : auth_plugin_mnet
• update_module_button() : core_renderer
• update_moved() : context
• update_options() : repository_type
• update_or_check_rubric() : gradingform_rubric_controller
• update_overall_grades() : quiz_overview_report
• update_peer_grade() : workshop_accumulative_strategy , workshop_numerrors_strategy , workshop_rubric_strategy
• update_publication() : course_publish_manager
• update_question_attempt() : question_engine_data_mapper
• update_question_attempt_flag() : question_engine_data_mapper
• update_question_attempt_step() : question_engine_data_mapper
• update_question_flags() : question_usage_by_activity
• update_questions_usage_by_activity() : question_engine_data_mapper
• update_rating() : rating
• update_raw_grade() : grade_item
• update_record() : UnitTestDB , moodle_database , mssql_native_moodle_database , mysqli_native_moodle_database , oci_native_moodle_database , pdo_moodle_database , pgsql_native_moodle_database , moodle_database_for_testing , sqlsrv_native_moodle_database
• update_record_raw() : moodle_database , mssql_native_moodle_database , mysqli_native_moodle_database , oci_native_moodle_database , pdo_moodle_database , pgsql_native_moodle_database , moodle_database_for_testing , sqlsrv_native_moodle_database
• update_registeredhub() : registration_manager
• update_sources() : entities
• update_state() : completion_info
• update_status() : enrol_meta_plugin , enrol_plugin , plagiarism_plugin
• update_submission() : assignment_online
• update_thumbnail() : data_field_picture
• update_timer() : lesson
• update_user_enrol() : enrol_plugin
• update_user_record() : auth_plugin_db , auth_plugin_ldap
• update_users() : core_user_external , moodle_user_external
• update_users_parameters() : core_user_external , moodle_user_external
• update_users_returns() : core_user_external , moodle_user_external
• update_visibility() : repository_type
• update_ws_authorised_user() : webservice
• UpdateActiveTable() : ADODB_Active_Record
• updateAttributes() : HTML_Common
• UpdateBlob() : ADODB_ads , ADODB_db2 , ADODB_ibase , ADODB_informix72 , ADODB_oci8 , ADODB_odbc , ADODB_odbtp , ADODB_postgres64
• UpdateBlobFile() : ADODB_ibase , ADODB_oci8 , ADODB_postgres64
• updateCache() : YAHOO_util_Loader
• updateCell() : Zend_Gdata_Spreadsheets
• updateCIDtoGIDmap() : TCPDF
• updateColsCount() : ADODB_Active_Table
• updateConference() : Zend_Service_DeveloperGarden_ConferenceCall
• updateConferenceTemplate() : Zend_Service_DeveloperGarden_ConferenceCall
• updateConferenceTemplateParticipant() : Zend_Service_DeveloperGarden_ConferenceCall
• updateContent() : Node
• updated_forced_settings() : grade_category
• updateDistribution() : S3
• updateElementAttr() : HTML_QuickForm
• updateEntity() : Zend_Service_WindowsAzure_Storage_Table
• updateEntry() : Zend_Gdata_App
• updateGbaseItem() : Zend_Gdata_Gbase
• updateGrandTotals() : moodle_coverage_reporter , CoverageReporter
• updatemod_url() : workshop
• updateParticipant() : Zend_Service_DeveloperGarden_ConferenceCall
• updateRow() : Zend_Gdata_Spreadsheets
• updateSubmission() : MoodleQuickForm
• updateUser() : Zend_Gdata_Gapps
• upgrade_confirm_page() : core_admin_renderer
• upgrade_environment_page() : core_admin_renderer
• upgrade_plugin_check_page() : core_admin_renderer
• upgrade_reload() : core_admin_renderer
• upgrade_savepoint_php() : XMLDBAction
• upload() : core_files_external , moodle_file_external , phpFlickr , assignment_uploadsingle , repository_upload , assignment_upload
• upload_copy_move() : t3lib_div
• upload_file() : assignment_uploadsingle , assignment_upload
• UPLOAD_LOCATION : google_picasa
• upload_manager() : upload_manager
• upload_notes() : assignment_upload
• upload_parameters() : core_files_external , moodle_file_external
• upload_responsefile() : assignment_upload , assignment_uploadsingle
• upload_returns() : core_files_external , moodle_file_external
• upload_to_tempfile() : t3lib_div
• uploadFile() : Zend_Gdata_Docs
• UploadFile() : boxclient
• UPLOADS_URI_SUFFIX : Zend_Gdata_YouTube
• uploadSlideShow() : Zend_Service_SlideShare
• uploadTemplate() : Zend_Service_LiveDocx_MailMerge
• uri : cc_qti_tags , Minify_Build
• URI_BASE : Zend_Service_Flickr
• URL_APPEND_HEADER : Zend_Amf_Constants
• URL_CLOUD_BLOB : Zend_Service_WindowsAzure_Storage
• URL_CLOUD_QUEUE : Zend_Service_WindowsAzure_Storage
• URL_CLOUD_TABLE : Zend_Service_WindowsAzure_Storage
• URL_DEV_BLOB : Zend_Service_WindowsAzure_Storage
• URL_DEV_QUEUE : Zend_Service_WindowsAzure_Storage
• URL_DEV_TABLE : Zend_Service_WindowsAzure_Storage
• url_get_full() : moodle_page
• url_get_parameters() : moodle_page
• url_get_path() : moodle_page
• url_select() : core_renderer
• url_stat() : Zend_Service_Amazon_S3_Stream , Zend_Service_WindowsAzure_Storage_Blob_Stream
• url_tag_rule() : creole_parser , nwiki_parser
• url_tag_tag_rule() : nwiki_parser
• url_to_class_name() : testable_moodle_page , moodle_page
• urldecode_rfc3986() : OAuthUtil
• urlencode() : Zend_Service_WindowsAzure_Storage
• urlencode_rfc3986() : OAuthUtil
• urls_getGroup() : phpFlickr
• urls_getUserPhotos() : phpFlickr
• urls_getUserProfile() : phpFlickr
• urls_lookupGroup() : phpFlickr
• urls_lookupUser() : phpFlickr
• US_ENGLISH : language_lom
• US_OFFSET : Net_GeoIP
• usage_id_in() : qubaid_list , qubaid_join , qubaid_condition
• usage_id_in_params() : qubaid_condition , qubaid_join , qubaid_list
• use_advanced_grading() : mod_assignment_grading_form
• use_editor() : textarea_texteditor , tinymce_texteditor , texteditor
• use_formula() : grade_item
• use_in() : grade_outcome
• USE_RAW_DATA : question_attempt
• use_xml_writer() : moodle1_qtype_handler , moodle1_assignment_subplugin_handler , moodle1_workshopform_handler
• useByteString() : Zend_Validate_File_Size
• useCookies() : SimpleBrowser , SimpleUserAgent
• UseDefaultValues() : ADODB_Active_Record
• useEncryption() : XMPPHP_XMPP
• useFrames() : SimpleBrowser
• useObjectMapping() : Zend_Gdata_App
• useProxy() : SimpleBrowser , SimpleTestOptions , SimpleTest , SimpleUserAgent , WebTestCase
• user_activate() : auth_plugin_ldap
• user_allowed_editing() : moodle_page
• user_authenticated_hook() : auth_plugin_base
• user_authorise() : auth_plugin_mnet
• user_can_addto() : block_base , block_community
• user_can_edit() : block_community , block_base
• user_can_edit_blocks() : moodle_page
• user_can_rate() : rating
• user_can_view_aggregate() : rating
• user_complete() : assignment_base
• user_config_form() : portfolio_plugin_base
• user_config_validation() : portfolio_plugin_base
• user_confirm() : auth_plugin_webservice , auth_plugin_base , auth_plugin_email , auth_plugin_manual , auth_plugin_ldap
• USER_CONTACTS_REL : Zend_Gdata_YouTube
• user_create() : auth_plugin_ldap
• user_delete() : enrol_plugin , auth_plugin_base
• USER_DELETED_RECENTLY : Zend_Gdata_Gapps_Error
• user_enrol_modified() : enrol_meta_handler
• user_enrolled() : enrol_meta_handler
• user_enrolments() : enrol_mnet_mnetservice_enrol
• user_enrolments_and_actions() : core_enrol_renderer
• user_exists() : auth_plugin_db , auth_plugin_ldap , auth_plugin_base
• USER_FAVORITES_REL : Zend_Gdata_YouTube
• user_files_tree() : core_user_renderer
• user_filter_cohort() : user_filter_cohort
• user_filter_courserole() : user_filter_courserole
• user_filter_date() : user_filter_date
• user_filter_globalrole() : user_filter_globalrole
• user_filter_profilefield() : user_filter_profilefield
• user_filter_select() : user_filter_select
• user_filter_simpleselect() : user_filter_simpleselect
• user_filter_text() : user_filter_text
• user_filter_type() : user_filter_type
• user_filter_yesno() : user_filter_yesno
• user_filtering() : user_filtering
• user_groups_and_actions() : core_enrol_renderer
• user_is_editing() : moodle_page
• user_lazy_update() : ChatDaemon
• user_login() : auth_plugin_none , auth_plugin_pam , auth_plugin_mnet , auth_plugin_db , auth_plugin_fc , auth_plugin_ldap , auth_plugin_nologin , auth_plugin_nntp , auth_plugin_radius , auth_plugin_manual , auth_plugin_email , auth_plugin_pop3 , auth_plugin_cas , auth_plugin_imap , auth_plugin_base , auth_plugin_webservice , auth_plugin_shibboleth
• user_login_webservice() : auth_plugin_webservice
• user_not_supposed_to_be_here() : enrol_meta_handler
• user_outline() : assignment_base
• USER_PATH : Zend_Gdata_Photos
• user_picture() : quiz_nav_panel_base , core_renderer
• USER_PLAYLISTS_REL : Zend_Gdata_YouTube
• USER_PREF_NAME : google_docs , google_picasa
• user_reset_rss_token_confirmation() : core_rss_renderer
• user_reset_token_confirmation() : core_webservice_renderer
• user_roles_and_actions() : core_enrol_renderer
• user_rss_token_box() : core_rss_renderer
• user_signup() : auth_plugin_base , auth_plugin_ldap , auth_plugin_email
• USER_SUBSCRIPTIONS_REL : Zend_Gdata_YouTube
• USER_SUSPENDED : Zend_Gdata_Gapps_Error
• user_unenrolled() : enrol_meta_handler
• user_update() : auth_plugin_base , auth_plugin_ldap , auth_plugin_db
• user_update_password() : auth_plugin_manual , auth_plugin_db , auth_plugin_webservice , auth_plugin_base , auth_plugin_ldap , auth_plugin_email , auth_plugin_nologin , auth_plugin_none
• USER_UPLOADS_REL : Zend_Gdata_YouTube
• USER_URI : Zend_Gdata_YouTube
• user_webservice_tokens_box() : core_webservice_renderer
• userFollowers() : Zend_Service_Twitter
• userFriends() : Zend_Service_Twitter
• userGetFriends() : Zend_Service_Audioscrobbler
• userGetNeighbours() : Zend_Service_Audioscrobbler
• userGetProfileInformation() : Zend_Service_Audioscrobbler
• userGetRecentBannedTracks() : Zend_Service_Audioscrobbler
• userGetRecentLovedTracks() : Zend_Service_Audioscrobbler
• userGetRecentTracks() : Zend_Service_Audioscrobbler
• userGetTopAlbums() : Zend_Service_Audioscrobbler
• userGetTopArtists() : Zend_Service_Audioscrobbler
• userGetTopTags() : Zend_Service_Audioscrobbler
• userGetTopTagsForAlbum() : Zend_Service_Audioscrobbler
• userGetTopTagsForArtist() : Zend_Service_Audioscrobbler
• userGetTopTagsForTrack() : Zend_Service_Audioscrobbler
• userGetTopTracks() : Zend_Service_Audioscrobbler
• userGetWeeklyAlbumChart() : Zend_Service_Audioscrobbler
• userGetWeeklyArtistChart() : Zend_Service_Audioscrobbler
• userGetWeeklyChartList() : Zend_Service_Audioscrobbler
• userGetWeeklyTrackChart() : Zend_Service_Audioscrobbler
• users_with_submission() : workshop
• userSearch() : Zend_Service_Flickr
• userShow() : Zend_Service_Twitter
• USERTYPE_AUTHOR : workshop_random_allocator
• USERTYPE_REVIEWER : workshop_random_allocator
• useSSL() : XMPPHP_XMLStream
• using_attempts_string() : quiz_statistics_report
• usingObjectMapping() : Zend_Gdata_App
• utf8_byte2char_pos() : t3lib_cs
• utf8_char2byte_pos() : t3lib_cs
• utf8_char_mapping() : t3lib_cs
• utf8_decode() : t3lib_cs
• utf8_encode() : t3lib_cs
• utf8_strlen() : t3lib_cs
• utf8_strpos() : t3lib_cs
• utf8_strrpos() : t3lib_cs
• utf8_strtrunc() : t3lib_cs
• utf8_substr() : t3lib_cs
• utf8_to_entities() : xml2Array , t3lib_cs , textlib
• utf8_to_numberarray() : t3lib_cs
• UTF8ArrayToUniArray() : TCPDF
• UTF8ArrSubString() : TCPDF
• UTF8ArrToLatin1() : TCPDF
• utf8Bidi() : TCPDF
• UTF8CharBoundary() : PHPMailer
• utf8CharToUnumber() : t3lib_cs
• utf8StrArrRev() : TCPDF
• UTF8StringToArray() : TCPDF
• utf8StrRev() : TCPDF
• UTF8ToLatin1() : TCPDF
• UTF8ToUTF16BE() : TCPDF
• uuidgen() : cc_helpers , cc_organization