General configuration options of CorA are stored in PHP files in the web directory. Be aware that these configuration files contain sensitive information such as the database password used by CorA. Setting restrictive permissions on these files is therefore recommended.

config.defaults.php contains a list of all possible configuration options along with their default settings. Do not modify this file directly! Instead, create or modify config.php, which may contain a list of user-defined options that override any of the default settings.

List of configuration options


An array with information required for connecting to the database, namely:

  • HOST: hostname of the DB server, defaults to
  • USER: name of the MySQL user, defaults to cora
  • PASSWORD: password of the MySQL user, defaults to trustthetext
  • DBNAME: name of the MySQL database, defaults to cora
The default language of the web interface for new users and for the login page; this feature is not implemented yet.
Value of the meta description HTML tag on the web page.
Sets the local directory that CorA uses to store data files; currently, that means parameter files for automatic annotators. Currently defaults to /var/lib/cora/ regardless of host system (i.e., if you’re running CorA on Windows, you definitely need to change this to something sensible).

An array with information about a person to contact in case of problems or questions; will appear on the “Help” tab if filled. Recognized the following fields:

  • name: Name of the maintainer
  • email: E-mail address (will be displayed and hyperlinked)
Long name of this CorA instance, currently only used in the HTML title tag.
The algorithmic cost of PHP’s bcrypt algorithm for hashing passwords.
PHP session name to use; affects the name of the browser cookie set by CorA. Change this to something unique when running more than one CorA instance on the same server.
A string appended to database credentials when running unit tests; e.g., if this is set to “test” and the CorA database is “cora”, unit tests will try to run on a database “cora_test”.
Name of this CorA instance, used in the HTML title tag and displayed at the top of each page.