# iCalcreator is the PHP class package managing > iCal calendar information

[rfc5545] - Internet Calendaring and Scheduling Core Object Specification (iCalendar) | |supporting| |---|---| |[rfc2445]|Internet Calendaring and Scheduling Core Object Specification (iCalendar)| |[rfc5870]|A Uniform Resource Identifier for Geographic Locations ('geo' URI)| |[rfc6321]|xCal: The XML Format for iCalendar| |[rfc6868]|Parameter Value Encoding in iCalendar and vCard| |[rfc7529]|Non-Gregorian Recurrence Rules in the Internet Calendaring and Scheduling Core Object Specification (iCalendar)| |[rfc7808]|Time Zone Data Distribution Service| |[rfc7953]|Calendar Availability| |[rfc7986]|New Properties for iCalendar| |[rfc9073]|Event Publishing Extensions to iCalendar| |[rfc9074]|VALARM Extensions for iCalendar| operating on calendar and calendar event, todo, journal, freebusy, participant, location, resource, availability and timezone data. ~~~~~~~~ iCalcreator supports systems like * calendars * CMS * project management systems * other applications... ~~~~~~~~ Please review - [demo] for a short demo - releaseNotes for release brief overview, - docs/summary and docs/using for details. For iCal json (JSCalendar, [rfc8984]) export and import, use [github.com/PhpJsCalendar]. ###### Builds v2.41.70 - v2.42 pre-release v2.40 - stable PHP8 v2.39 - PHP7 To support the development, maintenance and test process [PHPCompatibility], [PHPStan] and [php-arguments-detector] are included.. ###### Support For support use [github.com/iCalcreator]. Non-emergence support issues are, unless sponsored, fixed in due time. ###### Sponsorship Donation using [paypal.me/kigkonsult] are appreciated. For invoice, please e-mail. ###### Installation Composer From the Command Line: ``` composer require kigkonsult/icalcreator ``` In your composer.json: ``` { "require": { "kigkonsult/icalcreator": ">=2.40" } } ``` ###### License iCalcreator is licensed under the LGPLv3 License. [demo]:docs/demoUsage.md [github.com/iCalcreator]:https://github.com/iCalcreator/iCalcreator/issues [github.com/PhpJsCalendar]:https://github.com/iCalcreator/PhpJsCalendar [paypal.me/kigkonsult]:https://paypal.me/kigkonsult [PHPCompatibility]:https://github.com/PHPCompatibility/PHPCompatibility [PHPStan]:https://github.com/phpstan/phpstan [php-arguments-detector]:https://github.com/DeGraciaMathieu/php-arguments-detector [rfc2445]:https://www.rfc-editor.org/info/rfc2445 [rfc5545]:https://www.rfc-editor.org/info/rfc5545 [rfc5870]:https://www.rfc-editor.org/info/rfc5870 [rfc6321]:https://www.rfc-editor.org/info/rfc6321 [rfc6868]:https://www.rfc-editor.org/info/rfc6868 [rfc7529]:https://www.rfc-editor.org/info/rfc7529 [rfc7808]:https://www.rfc-editor.org/info/rfc7808 [rfc7953]:https://www.rfc-editor.org/info/rfc7953 [rfc7986]:https://www.rfc-editor.org/info/rfc7986 [rfc8984]:https://www.rfc-editor.org/info/rfc8984 [rfc9073]:https://www.rfc-editor.org/info/rfc9073 [rfc9074]:https://www.rfc-editor.org/info/rfc9074