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$action: PostDataHandler::$action in post.php

What are we performing?
$admin_override: DataHandler::$admin_override in datahandler.php

The status of administrator override powers.
add: timer::add() in class_timers.php

Starts the timer.
addacpnav: addacpnav() in adminfunctions.php
add_breadcrumb: add_breadcrumb() in functions.php

Add a breadcrumb menu item to the list.
add_favorite_thread: add_favorite_thread() in functions_user.php

Adds a thread to a user's favorite thread list.
add_hook: pluginSystem::add_hook() in class_plugins.php

Add a hook onto which a plugin can be attached.
add_item: FeedGenerator::add_item() in class_feedgeneration.php

Adds an item to the RSS feed.
add_shutdown: add_shutdown() in functions.php

Adds a function to the list of functions to run on shutdown.
add_subscribed_forum: add_subscribed_forum() in functions_user.php

Adds a forum to a user's forum subscription list.
add_subscribed_thread: add_subscribed_thread() in functions_user.php

Adds a thread to a user's thread subscription list.
adminfunctions.php: adminfunctions.php in adminfunctions.php
adminlogs.php: adminlogs.php in adminlogs.php
adminoptions.php: adminoptions.php in adminoptions.php
announcements.php: announcements.php in announcements.php
attachments.php: attachments.php in attachments.php
ADMIN_IP_SEGMENTS: ADMIN_IP_SEGMENTS in global.php
affected_rows: databaseEngine::affected_rows() in db_mysql.php

Returns the number of affected rows in a query.
alt_trow: alt_trow() in functions.php

Select an alternating row colour based on the previous call to this function
analyze_table: databaseEngine::analyze_table() in db_mysql.php

Analyzes a specific table.
announcements.php: announcements.php in announcements.php
approve_posts: Moderation::approve_posts() in class_moderation.php

Approve multiple posts
approve_threads: Moderation::approve_threads() in class_moderation.php

Approve one or more threads
archive_error: archive_error() in functions_archive.php

Output an archive error.
archive_error_no_permission: archive_error_no_permission() in functions_archive.php

Ouput a "no permission"page.
archive_footer: archive_footer() in functions_archive.php

Output the archive footer.
archive_header: archive_header() in functions_archive.php

Output the archive page header.
archive_multipage: archive_multipage() in functions_archive.php

Output multipage navigation.
archive_navigation: archive_navigation() in functions_archive.php

Build the archive navigation.
attachment.php: attachment.php in attachment.php
adminfunctions_templates.php: adminfunctions_templates.php in adminfunctions_templates.php
adminlogs.lang.php: adminlogs.lang.php in adminlogs.lang.php
adminoptions.lang.php: adminoptions.lang.php in adminoptions.lang.php
announcements.lang.php: announcements.lang.php in announcements.lang.php
attachments.lang.php: attachments.lang.php in attachments.lang.php
announcements.lang.php: announcements.lang.php in announcements.lang.php
archive.lang.php: archive.lang.php in archive.lang.php

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$badwords_cache: postParser::$badwords_cache in class_parser.php

Internal cache of badwords filters
$base_url: postParser::$base_url in class_parser.php

Base URL for smilies
$botgroup: session::$botgroup in class_session.php
$bots: session::$bots in class_session.php
badwords.php: badwords.php in badwords.php
bitwise: bitwise in class_bitwise.php

MyBB 1.2 Copyright © 2006 MyBB Group, All Rights Reserved
buildacpnav: buildacpnav() in adminfunctions.php
buildforumpermissions: datacache::buildforumpermissions() in class_datacache.php

Build the forumpermissions cache.
buildtree: buildtree() in showthread.php

Build a navigation tree for threaded display.
build_archive_forumbits: build_archive_forumbits() in index.php

Gets a list of forums and possibly subforums.
build_archive_link: build_archive_link() in functions.php

Builds a URL to an archive mode page
build_breadcrumb: build_breadcrumb() in functions.php

Build the breadcrumb navigation trail from the specified items
build_clickable_smilies: build_clickable_smilies() in functions.php

Build the javascript clickable smilie inserter
build_css: build_css() in adminfunctions.php
build_css_array: build_css_array() in adminfunctions.php
build_css_selector_array: build_css_selector_array() in adminfunctions.php
build_date_dropdown: build_date_dropdown() in adminfunctions.php

Build a date dropdown and return the HTML for it.
build_forumbits: build_forumbits() in functions_forumlist.php

Build a list of forum bits.
build_forum_breadcrumb: build_forum_breadcrumb() in functions.php

Build the forum breadcrumb nagiation (the navigation to a specific forum including all parent forums)
build_forum_jump: build_forum_jump() in functions.php

Builds a forum jump menu
build_mycode_inserter: build_mycode_inserter() in functions.php

Build the javascript based MyCode inserter
build_parent_list: build_parent_list() in functions.php

Build a parent list of a specific forum, suitable for querying
build_permission_forumbits: build_permission_forumbits() in forumpermissions.php
build_postbit: build_postbit() in functions_post.php

Build a post bit
build_profile_link: build_profile_link() in functions.php

Build the profile link.
build_tag: XMLParser::build_tag() in class_xml.php

Private: Build a completed tag by fetching all child nodes and attributes
build_theme_array: build_theme_array() in adminfunctions.php
build_theme_bit_array: build_theme_bit_array() in adminfunctions.php
build_theme_select: build_theme_select() in functions.php

Build a theme selection menu
badwords.lang.php: badwords.lang.php in badwords.lang.php

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$cache: templates::$cache in class_templates.php

The template cache.
$cache: datacache::$cache in class_datacache.php

Cache contents.
$channel: FeedGenerator::$channel in class_feedgeneration.php

Array of the channel information.
$channel: FeedParser::$channel in class_feedparser.php

Array of the channel information.
$clean_variables: MyBB::$clean_variables in class_core.php

Variables that need to be cleaned.
$collapse_dups: XMLParser::$collapse_dups in class_xml.php
$config: MyBB::$config in class_core.php

MyBB configuration.
$current_hook: pluginSystem::$current_hook in class_plugins.php

The current hook which we're in (if any)
$cwd: MyBB::$cwd in class_core.php

The current working directory.
cache: templates::cache() in class_templates.php

Cache the templates.
cache: datacache::cache() in class_datacache.php

Build cache data.
cache_forums: cache_forums() in functions.php

Load the forum cache in to memory
cache_themes: cache_themes() in adminfunctions.php
calendar.php: calendar.php in calendar.php
captcha.php: captcha.php in captcha.php
change_thread_subject: Moderation::change_thread_subject() in class_moderation.php

Change thread subject
checkadminpermissions: checkadminpermissions() in adminfunctions.php
checkbanned: checkbanned() in users.php
check_forum_password: check_forum_password() in functions.php

Check the password given on a certain forum for validity
check_thumbnail_memory: check_thumbnail_memory() in functions_image.php
clean_input: MyBB::clean_input() in class_core.php

Cleans predefined input variables.
clean_keywords: clean_keywords() in functions_search.php

Clean search keywords and make them safe for querying
clean_keywords_ft: clean_keywords_ft() in functions_search.php

Clean search keywords for fulltext searching, making them safe for querying
clearinline: clearinline() in moderation.php
close: databaseEngine::close() in db_mysql.php

Close the connection with the DBMS.
close_threads: Moderation::close_threads() in class_moderation.php

Close one or more threads
connect: databaseEngine::connect() in db_mysql.php

Connect to the database server.
cperror: cperror() in adminfunctions.php
cpfooter: cpfooter() in adminfunctions.php
cpheader: cpheader() in adminfunctions.php

MyBB 1.2 Copyright © 2006 MyBB Group, All Rights Reserved
cpmessage: cpmessage() in adminfunctions.php
cpredirect: cpredirect() in adminfunctions.php
create_fulltext_index: databaseEngine::create_fulltext_index() in db_mysql.php

Creates a fulltext index on the specified column in the specified table with optional index name.
create_session: session::create_session() in class_session.php

Create a new session.
css.php: css.php in css.php
CustomModeration: CustomModeration in class_custommoderation.php

Used to execute a custom moderation tool
class_bitwise.php: class_bitwise.php in class_bitwise.php
class_core.php: class_core.php in class_core.php
class_custommoderation.php: class_custommoderation.php in class_custommoderation.php
class_datacache.php: class_datacache.php in class_datacache.php
class_diff.php: class_diff.php in class_diff.php
class_feedgeneration.php: class_feedgeneration.php in class_feedgeneration.php
class_feedparser.php: class_feedparser.php in class_feedparser.php
class_language.php: class_language.php in class_language.php
class_moderation.php: class_moderation.php in class_moderation.php
class_parser.php: class_parser.php in class_parser.php
class_plugins.php: class_plugins.php in class_plugins.php
class_session.php: class_session.php in class_session.php
class_templates.php: class_templates.php in class_templates.php
class_timers.php: class_timers.php in class_timers.php
class_xml.php: class_xml.php in class_xml.php
config.php: config.php in config.php
calendar.lang.php: calendar.lang.php in calendar.lang.php
customhelpdocs.lang.php: customhelpdocs.lang.php in customhelpdocs.lang.php
customhelpsections.lang.php: customhelpsections.lang.php in customhelpsections.lang.php

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$data: XMLParser::$data in class_xml.php
$data: DataHandler::$data in datahandler.php

The data being managed by the data handler
$debug: MyBB::$debug in class_core.php

The debug information.
dbtools.php: dbtools.php in dbtools.php
databaseEngine: databaseEngine in db_mysql.php

MyBB 1.2 Copyright © 2006 MyBB Group, All Rights Reserved
datacache: datacache in class_datacache.php

MyBB 1.2 Copyright © 2006 MyBB Group, All Rights Reserved
DataHandler: DataHandler in datahandler.php

Base data handler class.
Datahandler: DataHandler::Datahandler() in datahandler.php

Constructor for the data handler.
data_seek: databaseEngine::data_seek() in db_mysql.php

Moves internal row pointer to the next row
date2timestamp: date2timestamp() in users.php
dberror: databaseEngine::dberror() in db_mysql.php

Output a database error.
debug_page: debug_page() in functions.php

Prints a debug information page
dec_to_utf8: dec_to_utf8() in functions.php

Converts a decimal reference of a character to its UTF-8 equivilant (Code by Anne van Kesteren, http://annevankesteren.nl/2005/05/character-references)
delete_poll: Moderation::delete_poll() in class_moderation.php

Delete a poll
delete_post: Moderation::delete_post() in class_moderation.php

Delete a specific post
delete_post: delete_post() in functions.php

Deletes a post from the database
delete_query: databaseEngine::delete_query() in db_mysql.php

Build a delete query.
delete_thread: delete_thread() in functions.php

Deletes a thread from the database
delete_thread: Moderation::delete_thread() in class_moderation.php

Delete a thread
draw_circles: draw_circles() in captcha.php

Draws a random number of circles on the image.
draw_dots: draw_dots() in captcha.php

Draws a random number of dots on the image.
draw_lines: draw_lines() in captcha.php

Draws a random number of lines on the image.
draw_squares: draw_squares() in captcha.php

Draws a random number of squares on the image.
draw_string: draw_string() in captcha.php

Writes text to the image.
drop_index: databaseEngine::drop_index() in db_mysql.php

Drop an index with the specified name from the specified table
datahandler.php: datahandler.php in datahandler.php
db_mysql.php: db_mysql.php in db_mysql.php
db_mysqli.php: db_mysqli.php in db_mysqli.php
dbtools.lang.php: dbtools.lang.php in dbtools.lang.php
datahandler_event.lang.php: datahandler_event.lang.php in datahandler_event.lang.php
datahandler_pm.lang.php: datahandler_pm.lang.php in datahandler_pm.lang.php
datahandler_post.lang.php: datahandler_post.lang.php in datahandler_post.lang.php
datahandler_user.lang.php: datahandler_user.lang.php in datahandler_user.lang.php

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$eid: EventDataHandler::$eid in event.php

Event ID currently being manipulated by the datahandlers.
$end: timer::$end in class_timers.php

The end time of this timer.
$error: FeedParser::$error in class_feedparser.php

Any error the feed parser may encounter
$errors: DataHandler::$errors in datahandler.php

The errors that occurred when handling data.
$error_reporting: databaseEngine::$error_reporting in db_mysql.php

1 if error reporting enabled, 0 if disabled.
$event_insert_data: EventDataHandler::$event_insert_data in event.php

Array of data inserted in to an event.
$event_update_data: EventDataHandler::$event_update_data in event.php

Array of data used to update an event.
$explain: databaseEngine::$explain in db_mysql.php

Explanation of a query.
editpost.php: editpost.php in editpost.php
endform: endform() in adminfunctions.php
endnav: endnav() in adminfunctions.php
endtable: endtable() in adminfunctions.php
errno: databaseEngine::errno() in db_mysql.php

Return an error number.
error: error() in functions.php

Produce a friendly error message page
error: databaseEngine::error() in db_mysql.php

Return an error string.
error_no_permission: error_no_permission() in functions.php

Presents the user with a "no permission" page
escape_string: databaseEngine::escape_string() in db_mysql.php

Escape a string according to the MySQL escape format.
EventDataHandler: EventDataHandler in event.php

Event handling class, provides common structure to handle event data.
execute: CustomModeration::execute() in class_custommoderation.php

Execute Custom Moderation Tool
execute_post_moderation: CustomModeration::execute_post_moderation() in class_custommoderation.php

Execute Inline Post Moderation
execute_thread_moderation: CustomModeration::execute_thread_moderation() in class_custommoderation.php

Execute Normal and Inline Thread Moderation
expire_thread: Moderation::expire_thread() in class_moderation.php

Add thread expiry
explain_query: databaseEngine::explain_query() in db_mysql.php

Explain a query on the database.
extendinline: extendinline() in moderation.php
event.php: event.php in event.php
editpost.lang.php: editpost.lang.php in editpost.lang.php
english.php: english.php in english.php

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$failedlogin: session::$failedlogin in class_session.php
$feed_format: FeedGenerator::$feed_format in class_feedgeneration.php

The type of feed to generate.
$formatted: timer::$formatted in class_timers.php

The formatted total time this timer has run.
forumpermissions.php: forumpermissions.php in forumpermissions.php
forums.php: forums.php in forums.php
FeedGenerator: FeedGenerator in class_feedgeneration.php

MyBB 1.2 Copyright © 2006 MyBB Group, All Rights Reserved
FeedParser: FeedParser in class_feedparser.php

MyBB 1.2 Copyright Â© 2006 MyBB Group, All Rights Reserved
fetch_array: databaseEngine::fetch_array() in db_mysql.php

Return a result array for a query.
fetch_field: databaseEngine::fetch_field() in db_mysql.php

Return a specific field from a query.
fetch_forum_permissions: fetch_forum_permissions() in functions.php

Fetches the permissions for a specific forum/group applying the inheritance scheme.
field_exists: databaseEngine::field_exists() in db_mysql.php

Check if a field exists in a database.
file_get_contents: file_get_contents() in functions.php
find_replace_templatesets: find_replace_templatesets() in adminfunctions_templates.php

Find and replace a string in a particular template through every template set.
fix_css_urls: fix_css_urls() in adminfunctions.php
fix_javascript: postParser::fix_javascript() in class_parser.php

Attempts to move any javascript references in the specified message.
fix_mktime: fix_mktime() in functions.php

Fixes mktime() for dates earlier than 1970
format: timer::format() in class_timers.php

Formats the timer time in a pretty way.
format_bdays: format_bdays() in functions.php

Formats a birthday appropriately
format_name: format_name() in functions.php

Formats a username based on their display group
forumdisplay.php: forumdisplay.php in forumdisplay.php
forumselect: forumselect() in adminfunctions.php

Build a dropdown to select a forum
forum_checkbox_list: forum_checkbox_list() in adminfunctions.php

Build a list of checkboxes to select multiple forums
forum_permissions: forum_permissions() in functions.php

Build the forum permissions for a specific forum, user or group
FORUM_URL: FORUM_URL in init.php
FORUM_URL_PAGED: FORUM_URL_PAGED in init.php
functions.php: functions.php in functions.php
functions_archive.php: functions_archive.php in functions_archive.php
functions_forumlist.php: functions_forumlist.php in functions_forumlist.php
functions_image.php: functions_image.php in functions_image.php
functions_post.php: functions_post.php in functions_post.php
functions_rebuild.php: functions_rebuild.php in functions_rebuild.php
functions_search.php: functions_search.php in functions_search.php
functions_upload.php: functions_upload.php in functions_upload.php
functions_user.php: functions_user.php in functions_user.php
forumpermissions.lang.php: forumpermissions.lang.php in forumpermissions.lang.php
forums.lang.php: forums.lang.php in forums.lang.php
forumdisplay.lang.php: forumdisplay.lang.php in forumdisplay.lang.php

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global.php: global.php in global.php
global.php: global.php in global.php
gd_version: gd_version() in captcha.php

Obtain the version of GD installed.
generate_feed: FeedGenerator::generate_feed() in class_feedgeneration.php

Generate and echo XML for the feed.
generate_loginkey: generate_loginkey() in functions_user.php

Generates a 50 character random login key.
generate_salt: generate_salt() in functions_user.php

Generates a random salt
generate_thumbnail: generate_thumbnail() in functions_image.php

MyBB 1.2 Copyright © 2006 MyBB Group, All Rights Reserved
get: templates::get() in class_templates.php

Gets templates.
getadminpermissions: getadminpermissions() in adminfunctions.php
getaltbg: getaltbg() in adminfunctions.php
getbanremaining: getbanremaining() in users.php
getDiff: Text_Diff::getDiff() in class_diff.php

Returns the array of differences.
getFinal: Text_Diff::getFinal() in class_diff.php

Gets the final set of lines.
getforums: getforums() in forums.php
getids: getids() in moderation.php
getOriginal: Text_Diff::getOriginal() in class_diff.php

Gets the original set of lines.
getParams: Text_Diff_Renderer::getParams() in class_diff.php

Get any renderer parameters.
gettime: timer::gettime() in class_timers.php

Gets the time for which the timer has run up until this point.
get_age: get_age() in functions.php

Returns the age of a user with specified birthday.
get_attachment_icon: get_attachment_icon() in functions.php

Get the attachment icon for a specific file extension
get_banned_emails: get_banned_emails() in functions.php

Return a list of banned email addresses.
get_banned_ips: get_banned_ips() in functions.php

Return a list of banned IP addresses.
get_banned_usernames: get_banned_usernames() in functions.php

Return a list of banned usernames.
get_bdays: get_bdays() in functions.php

Workaround for date limitation in PHP to establish the day of a birthday (Provided by meme)
get_children: XMLParser::get_children() in class_xml.php

Fetch the children for from a specific node array
get_current_location: get_current_location() in functions.php

Get the current location taking in to account different web serves and systems
get_errors: DataHandler::get_errors() in datahandler.php

Returns the error(s) that occurred when handling data.
get_event_date: get_event_date() in functions.php

Get the event date.
get_event_poster: get_event_poster() in functions.php

Get the event poster.
get_extension: get_extension() in functions.php

Returns the extension of a file.
get_forum: get_forum() in functions.php

Get the forum of a specific forum id.
get_forum_lightbulb: get_forum_lightbulb() in functions_forumlist.php

Fetch the status indicator for a forum based on its last post and the read date
get_forum_link: get_forum_link() in functions.php

Build the forum link.
get_forum_unapproved: get_forum_unapproved() in functions_forumlist.php

Fetch the number of unapproved posts, formatted, from a forum
get_friendly_errors: DataHandler::get_friendly_errors() in datahandler.php

Returns the error(s) that occurred when handling data in a format that MyBB can handle.
get_friendly_size: get_friendly_size() in functions.php

Fetch the friendly size (GB, MB, KB, B) for a specified file size.
get_inactive_forums: get_inactive_forums() in functions.php

Get inactivate forums.
get_ip: get_ip() in functions.php

Fetch the IP address of the current user.
get_languages: MyLanguage::get_languages() in class_language.php

Get the language variables for a section.
get_moderator_permissions: get_moderator_permissions() in functions.php

Return the permissions for a moderator in a specific forum
get_parent_list: get_parent_list() in functions.php

Return a parent list for the specified forum.
get_parent_theme_bits: get_parent_theme_bits() in adminfunctions.php
get_pm_folder_name: get_pm_folder_name() in functions_user.php

Return the language specific name for a PM folder.
get_post: get_post() in functions.php

Get the post of a post id.
get_post_attachments: get_post_attachments() in functions_post.php

Fetch the attachments for a specific post and parse inline [attachment=id] code.
get_post_icons: get_post_icons() in functions.php

Generate a list of the posticons.
get_profile_link: get_profile_link() in functions.php

Get the profile link.
get_reputation: get_reputation() in functions.php

Get the formatted reputation for a user.
get_rss_timestamp: FeedParser::get_rss_timestamp() in class_feedparser.php

Converts an RSS date stamp in to a unix timestamp
get_server_load: get_server_load() in functions.php

Returns the serverload of the system.
get_special_locations: session::get_special_locations() in class_session.php

Find out the special locations.
get_thread: get_thread() in functions.php

Get the thread of a thread id.
get_thread_link: get_thread_link() in functions.php

Build the thread link.
get_tree: XMLParser::get_tree() in class_xml.php

Build a tree based structure based from the parsed data
get_unsearchable_forums: get_unsearchable_forums() in functions_search.php

Build a comma separated list of the forums this user cannot search
get_unviewable_forums: get_unviewable_forums() in functions.php

Get a list of the unviewable forums for the current user
get_user: get_user() in functions.php

Get the username of a user id.
get_usertitle: get_usertitle() in functions_user.php

Gets the usertitle for a specific uid.
get_validated: DataHandler::get_validated() in datahandler.php

Returns whether or not we are done validating.
get_version: databaseEngine::get_version() in db_mysql.php

Gets the current version of MySQL.
get_weekday: get_weekday() in functions.php

Workaround for date limitation in PHP to establish the day of a birthday (Provided by meme)
global.php: global.php in global.php
gzip_encode: gzip_encode() in functions.php

Gzip encodes text to a specified level
generic_error.php: generic_error.php in generic_error.php
global.lang.php: global.lang.php in global.lang.php
global.lang.php: global.lang.php in global.lang.php

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$hooks: pluginSystem::$hooks in class_plugins.php

The hooks to which plugins can be attached.
helpdocs.php: helpdocs.php in helpdocs.php
hello_activate: hello_activate() in hello.php
hello_deactivate: hello_deactivate() in hello.php
hello_info: hello_info() in hello.php

MyBB 1.2 Copyright © 2006 MyBB Group, All Rights Reserved
hello_world: hello_world() in hello.php
hello_world_postbit: hello_world_postbit() in hello.php
htmlspecialchars_uni: htmlspecialchars_uni() in functions.php

Custom function for htmlspecialchars which takes in to account unicode
helpdocs.lang.php: helpdocs.lang.php in helpdocs.lang.php
helpdocs.lang.php: helpdocs.lang.php in helpdocs.lang.php
helpsections.lang.php: helpsections.lang.php in helpsections.lang.php
hello.php: hello.php in hello.php

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$ignore_clean_variables: MyBB::$ignore_clean_variables in class_core.php

Variables that are to be ignored from cleansing proccess
$index_numeric: XMLParser::$index_numeric in class_xml.php
$input: MyBB::$input in class_core.php

Input variables received from the outer world.
$ipaddress: session::$ipaddress in class_session.php
$is_spider: session::$is_spider in class_session.php
$is_validated: DataHandler::$is_validated in datahandler.php

Whether or not the data has been validated. Note: "validated" != "valid".
$items: FeedGenerator::$items in class_feedgeneration.php

Array of all of the items
$items: FeedParser::$items in class_feedparser.php

Array of all of the items
icons.php: icons.php in icons.php
index.php: index.php in index.php
index.php: index.php in index.php
IGNORE_CLEAN_VARS: IGNORE_CLEAN_VARS in syndication.php
init.php: init.php in init.php
icons.lang.php: icons.lang.php in icons.lang.php
index.lang.php: index.lang.php in index.lang.php
index.lang.php: index.lang.php in index.lang.php
index.php: index.php in index.php
INDEX_URL: INDEX_URL in init.php
init: session::init() in class_session.php

Initialize a session
inline_error: inline_error() in functions.php

Produce an error message for displaying inline on a page
insert_event: EventDataHandler::insert_event() in event.php

Insert an event into the database.
insert_id: databaseEngine::insert_id() in db_mysql.php

Return the last id number of inserted data.
insert_pm: PMDataHandler::insert_pm() in pm.php

Insert a new private message.
insert_post: PostDataHandler::insert_post() in post.php

Insert a post into the database.
insert_query: databaseEngine::insert_query() in db_mysql.php

Build an insert query from an array.
insert_thread: PostDataHandler::insert_thread() in post.php

Insert a thread into the database.
insert_user: UserDataHandler::insert_user() in user.php

Inserts a user into the database.
isEmpty: Text_Diff::isEmpty() in class_diff.php

Checks for an empty diff.
is_banned_email: is_banned_email() in functions.php

Check if a specific email address has been banned.
is_banned_ip: is_banned_ip() in functions.php

Checks if a specific IP address has been banned.
is_banned_username: is_banned_username() in functions.php

Checks if a username has been disallowed for registration/use.
is_fulltext: databaseEngine::is_fulltext() in db_mysql.php

Returns whether or not the table contains a fulltext index.
is_moderator: is_moderator() in functions.php

Checks if a moderator has permissions to perform an action in a specific forum
is_super_admin: is_super_admin() in adminfunctions.php

Checks if a certain user ID is in the list of super administrators

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join_usergroup: join_usergroup() in functions.php

Add a user to a specific additional user group.

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keys_to_lowercase: FeedParser::keys_to_lowercase() in class_feedparser.php

Convert all array keys within an array to lowercase
killempty: killempty() in adminfunctions.php
kill_tags: kill_tags() in class_xml.php

Kill off unnecessary tags and return a clean array of XML data

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$language: MyLanguage::$language in class_language.php

The language we are using.
$language_file: PMDataHandler::$language_file in pm.php

The language file used in the data handler.
$language_file: EventDataHandler::$language_file in event.php

The language file used in the data handler.
$language_file: UserDataHandler::$language_file in user.php

The language file used in the data handler.
$language_file: PostDataHandler::$language_file in post.php

The language file used in the data handler.
$language_prefix: DataHandler::$language_prefix in datahandler.php

The prefix for the language variables used in the data handler.
$language_prefix: UserDataHandler::$language_prefix in user.php

The prefix for the language variables used in the data handler.
$language_prefix: EventDataHandler::$language_prefix in event.php

The prefix for the language variables used in the data handler.
$language_prefix: PMDataHandler::$language_prefix in pm.php

The prefix for the language variables used in the data handler.
$language_prefix: PostDataHandler::$language_prefix in post.php

The prefix for the language variables used in the data handler.
$link: databaseEngine::$link in db_mysql.php

The database connection resource.
$logins: session::$logins in class_session.php
languages.php: languages.php in languages.php
languages.lang.php: languages.lang.php in languages.lang.php
language_exists: MyLanguage::language_exists() in class_language.php

Check if a specific language exists.
lcs: Text_Diff::lcs() in class_diff.php

Computes the length of the Longest Common Subsequence (LCS).
leave_usergroup: leave_usergroup() in functions.php

Remove a user from a specific additional user group
list_tables: databaseEngine::list_tables() in db_mysql.php

Lists all functions in the database.
load: pluginSystem::load() in class_plugins.php

Load all plugins.
load: MyLanguage::load() in class_language.php

Load the language variables for a section.
load_guest: session::load_guest() in class_session.php

Load a guest user.
load_spider: session::load_spider() in class_session.php

Load a search engine spider.
load_user: session::load_user() in class_session.php

Load a user via the user credentials.
logadmin: logadmin() in adminfunctions.php
login_attempt_check: login_attempt_check() in functions.php

Checks to make sure a user has not tried to login more times than permitted Will stop execution with call to error() unless
log_message: MyBB::log_message() in class_core.php

Logs a message.
log_moderator_action: log_moderator_action() in functions.php

Log the actions of a moderator.

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$magicquotes: MyBB::$magicquotes in class_core.php

Whether or not magic quotes are enabled.
$method: DataHandler::$method in datahandler.php

Defines if we're performing an update or an insert.
$mycode_cache: postParser::$mycode_cache in class_parser.php

Internal cache of MyCode.
maintenance.php: maintenance.php in maintenance.php