lib Directory Reference

Directories
	ajax
	antivirus
	behat
	classes
	db
	ddl
	dml
	dtl
	editor
	external
	filebrowser
	filestorage
	form
	grade
	mlbackend
	phpunit
	portfolio
	table
	testing
	tests
	userkey
	xapi
	xmldb

Files
	accesslib.php
	This file contains functions for managing user access.
	adminlib.php
	Functions and classes used during installation, upgrades and for admin settings.
	authlib.php
	Multiple plugin authentication Support library.
	badgeslib.php
	Contains classes, functions and constants used in badges.
	blocklib.php
	Block Class and Functions.
	clilib.php
	Command line utility functions and classes.
	completionlib.php
	Contains classes, functions and constants used during the tracking of activity completion for users.
	componentlib.class.php
	This library includes all the necessary stuff to use the one-click download and install feature of Moodle, used to keep updated some items like languages, pear, enviroment... i.e, components.
	conditionlib.php
	DO NOT INCLUDE THIS FILE.
	configonlylib.php
	Minimalistic library, usable even when no other moodle libs are loaded.
	cronlib.php
	Cron functions.
	csslib.php
	This file contains CSS file serving functions.
	csvlib.class.php
	This is a one-line short description of the file.
	customcheckslib.php
	This is a place to put custom environment checks, if there is not a better place.
	dataformatlib.php
	dataformatlib.php - Contains core dataformat related functions.
	datalib.php
	Library of functions for database manipulation.
	ddllib.php
	This library includes all the required functions used to handle the DB structure (DDL) independently of the underlying RDBMS in use.
	deprecatedlib.php
	deprecatedlib.php - Old functions retained only for backward compatibility
	dmllib.php
	This library contains all the Data Manipulation Language (DML) functions used to interact with the DB.
	dtllib.php
	DTL == Database Transfer Library.
	editorlib.php
	Utility classes and functions for text editor integration.
	emptyfile.php
	This is an empty file.
	enrollib.php
	This library includes the basic parts of enrol api.
	environmentlib.php
	This library includes all the necessary stuff to execute some standard tests of required versions and libraries to run Moodle.
	excellib.class.php
	Excel writer abstraction layer.
	externallib.php
	Support for external API.
	filelib.php
	Functions for file handling.
	filterlib.php
	Library functions for managing text filter plugins.
	flickrclient.php
	Provides flickr_client class.
	formslib.php
	formslib.php - library of classes for creating forms in Moodle, based on PEAR QuickForms.
	gdlib.php
	gdlib.php - Collection of routines in Moodle related to processing images using GD
	googleapi.php
	Simple implementation of some Google API functions for Moodle.
	gradelib.php
	Library of functions for gradebook - both public and internal.
	grouplib.php
	installlib.php
	Functions to support installation process.
	jslib.php
	This file contains various javascript related functions, all functions here are self contained and can be used in ABORT_AFTER_CONFIG scripts.
	licenselib.php
	A namespace contains license specific functions.
	listlib.php
	Classes for displaying and editing a nested list of items.
	mathslib.php
	@subpackage lib
	messagelib.php
	Functions for interacting with the message system.
	modinfolib.php
	modinfolib.php - Functions/classes relating to cached information about module instances on a course.
	moodlelib.php
	moodlelib.php - Moodle main library
	myprofilelib.php
	Defines core nodes for my profile navigation tree.
	navigationlib.php
	This file contains classes used to manage the navigation structures within Moodle.
	oauthlib.php
	OAuth helper class.
	odslib.class.php
	ODS file writer.
	outputactions.php
	Classes representing JS event handlers, used by output components.
	outputcomponents.php
	Classes representing HTML elements, used by $OUTPUT methods.
	outputfactories.php
	Interface and classes for creating appropriate renderers for various parts of Moodle.
	outputfragmentrequirementslib.php
	Library functions to facilitate the use of JavaScript in Moodle.
	outputlib.php
	Functions for generating the HTML that Moodle should output.
	outputrenderers.php
	Classes for rendering HTML output for Moodle.
	outputrequirementslib.php
	Library functions to facilitate the use of JavaScript in Moodle.
	pagelib.php
	This file contains the moodle_page class.
	pdflib.php
	pdflib.php - Moodle PDF library
	phpminimumversionlib.php
	A set of PHP-compatible convenience functions to check Moodle minimum PHP version in a unified place.
	plagiarismlib.php
	plagiarismlib.php - Contains core Plagiarism related functions.
	portfoliolib.php
	This file contains all global functions to do with manipulating portfolios.
	questionlib.php
	Code for handling and processing questions.
	recaptchalib_v2.php
	This is a PHP library that handles calling reCAPTCHA v2.
	resourcelib.php
	Recourse module like helper functions.
	rsslib.php
	This file contains all the common stuff to be used in RSS System.
	searchlib.php
	@subpackage search
	sessionlib.php
	@subpackage session
	setuplib.php
	These functions are required very early in the Moodle setup process, before any of the main libraries are loaded.
	soaplib.php
	Web services wrapper library script.
	statslib.php
	@subpackage stats
	tablelib.php
	@subpackage lib
	tokeniserlib.php
	Based on Drupal's search.module version 1.224.
	upgradelib.php
	Various upgrade/install related functions and classes.
	uploadlib.php
	uploadlib.php - This class handles all aspects of fileuploading
	wasmlib.php
	This file contains various Web Assembly related functions, all functions here are self-contained and can be used in ABORT_AFTER_CONFIG scripts.
	webdavlib.php
	A Moodle-modified WebDAV client, based on webdav_client v0.1.5, a php based webdav client class.
	weblib.php
	Library of functions for web output.
	wiki_to_markdown.php
	Utility function to convert wiki-like to Markdown format.
	womenslib.php
	xmlize.php
	Code for parsing xml files.
	xsendfilelib.php
	X-Sendfile support.