README

Contao is an Open Source PHP Content Management System for people who want a professional website that is easy to maintain. Visit the project website for more information.

System Requirements

Web server
PHP 7.3+ with GDlib and DOM
MySQL 5.5.7+
InnoDB with innodb_large_prefix enabled

InnoDB Large Prefix

MySQL versions prior to 5.7.7 do not have the innodb_large_prefix option enabled by default. To enable it in one of these versions, add the following to your my.cnf file:

innodb_large_prefix = 1
innodb_file_format = Barracuda
innodb_file_per_table = 1

If the option cannot be enabled on your server, please configure a different database engine and character set in your config/config.yml file:

doctrine:
    dbal:
        connections:
            default:
                default_table_options:
                    charset: utf8
                    collate: utf8_unicode_ci
                    engine: MyISAM

See the system settings chapter of the user's manual for further information.

Browser Compatibility

Chrome, Firefox, Safari 12+, IE 11, Edge 17+, Opera, Chrome for Android, Safari for iOS 11.3+, Samsung Internet 8.2+

Installation

See the installation chapter of the user's manual.

Documentation

License

Contao is licensed under the terms of the LGPLv3.

Getting Support

Visit the support page to learn about the available support options.

contao / managed-edition

Maintainers

Details