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Use PKP\config\Config to read from an instance’s configuration file (config.inc.php). The configuration file is organized into sections. For example, the files_dir is defined in the files section like the following.

; File Settings ;


; Complete path to directory to store uploaded files
; (This directory should not be directly web-accessible)
; Windows users should use forward slashes
files_dir = /home/site/files

Get the files_dir value from the files section.

use PKP\config\Config;

$dir = Config::getVar('files', 'files_dir');

A setting may not be defined in the config file. Pass a third argument to use it as a default when the setting is undefined.

use PKP\config\Config;

$encryption = Config::getVar('security', 'encryption', 'sha1');