admin/environment/php extension/xmlrpc

To install the xmlrpc library on Microsoft Windows:

1. Open the php.ini file, depending on your installation this may be found in the moodle/apache/bin folder
2. Find the line: ;extension=php_xmlrpc.dll
3. Remove the ; at the beginning of the line
4. If necessary restart the web server, e.g. IIS or Apache.

To install the xmlrpc library on Linux/Unix

If you are using PHP as provided by the OS, you can just install the appropriate package, and restart the service (e.g. PHP-FPM or Apache):

• On Ubuntu and Debian, the command is: apt-get install php-xmlrpc
• On RedHat, Fedora, CentOS and SuSE, the command is: dnf install php-xmlrpc

If you compiled your PHP from source:

1. You need to recompile PHP from source
2. add --with-xmlrpc to the command line when you run configure