This article describes how to change the site URL for a Moodle installation. You may need to do this, for example, if you migrate an existing Moodle installation to a new server. Alternatively, you may want to relocate a Moodle installation to a new directory on the same server.
Using the command line or cPanel File Manager, navigate to the directory where Moodle is installed.
Using your preferred text editor, open the config.php file.
Locate the line in the file that begins $CFG->wwwroot.
Update the corresponding value with the new site URL. For example:
$CFG->wwwroot = 'https://example.com/moodle';
Save your changes to the config.php file. The new site URL is now active.
If you are migrating a Moodle installation, you should check other values in the config.php file and ensure they are correct. For example, verify that the following database and data directory settings are correct:
$CFG->dbname: This is the Moodle database name.
$CFG->dbuser: This is the username for the Moodle database.
$CFG->dbpass: This is the password for the Moodle database.
$CFG->prefix: This is the table prefix used in the Moodle database.
$CFG->dataroot: This is the data root directory for the Moodle installation. For security reasons, this directory should not be located under the public_html directory.