public static function get_instance_info($instanceid) {
        global $DB;

        $params = self::validate_parameters(self::get_instance_info_parameters(), array('instanceid' => $instanceid));
        $warnings = array();

        // Retrieve guest enrolment plugin.
        $enrolplugin = enrol_get_plugin('guest');
        if (empty($enrolplugin)) {
            throw new moodle_exception('invaliddata', 'error');
        }

        self::validate_context(context_system::instance());
        $enrolinstance = $DB->get_record('enrol', array('id' => $params['instanceid']), '*', MUST_EXIST);

        $course = $DB->get_record('course', array('id' => $enrolinstance->courseid), '*', MUST_EXIST);
        if (!core_course_category::can_view_course_info($course) && !can_access_course($course)) {
            throw new moodle_exception('coursehidden');
        }

        $instanceinfo = $enrolplugin->get_enrol_info($enrolinstance);
        // Specific instance information.
        $instanceinfo->passwordrequired = $instanceinfo->requiredparam->passwordrequired;

        unset($instanceinfo->requiredparam);

        $result = array();
        $result['instanceinfo'] = $instanceinfo;
        $result['warnings'] = $warnings;
        return $result;
    }
public static function get_instance_info($instanceid) {
        global $DB;

        $params = self::validate_parameters(self::get_instance_info_parameters(), array('instanceid' => $instanceid));
        $warnings = array();

        // Retrieve guest enrolment plugin.
        $enrolplugin = enrol_get_plugin('guest');
        if (empty($enrolplugin)) {
            throw new moodle_exception('invaliddata', 'error');
        }

        self::validate_context(context_system::instance());
        $enrolinstance = $DB->get_record('enrol', array('id' => $params['instanceid']), '*', MUST_EXIST);

        $course = $DB->get_record('course', array('id' => $enrolinstance->courseid), '*', MUST_EXIST);
        if (!core_course_category::can_view_course_info($course) && !can_access_course($course)) {
            throw new moodle_exception('coursehidden');
        }

        $instanceinfo = $enrolplugin->get_enrol_info($enrolinstance);
        // Specific instance information.
        $instanceinfo->passwordrequired = $instanceinfo->requiredparam->passwordrequired;

        unset($instanceinfo->requiredparam);

        $result = array();
        $result['instanceinfo'] = $instanceinfo;
        $result['warnings'] = $warnings;
        return $result;
    }
public static function get_instance_info ( $ instanceid ) { global $ DB ; $ params = self :: validate_parameters ( self :: get_instance_info_parameters ( ) , array ( 'instanceid' => $ instanceid ) ) ; $ warnings = array ( ) ; // Retrieve guest enrolment plugin. $ enrolplugin = enrol_get_plugin ( 'guest' ) ; if ( empty ( $ enrolplugin ) ) { throw new moodle_exception ( 'invaliddata' , 'error' ) ; } self :: validate_context ( context_system :: instance ( ) ) ; $ enrolinstance = $ DB -> get_record ( 'enrol' , array ( 'id' => $ params [ 'instanceid' ] ) , '*' , MUST_EXIST ) ; $ course = $ DB -> get_record ( 'course' , array ( 'id' => $ enrolinstance -> courseid ) , '*' , MUST_EXIST ) ; if ( ! core_course_category :: can_view_course_info ( $ course ) && ! can_access_course ( $ course ) ) { throw new moodle_exception ( 'coursehidden' ) ; } $ instanceinfo = $ enrolplugin -> get_enrol_info ( $ enrolinstance ) ; // Specific instance information. $ instanceinfo -> passwordrequired = $ instanceinfo -> requiredparam -> passwordrequired ; unset ( $ instanceinfo -> requiredparam ) ; $ result = array ( ) ; $ result [ 'instanceinfo' ] = $ instanceinfo ; $ result [ 'warnings' ] = $ warnings ; return $ result ; }
Return guest enrolment instance information.

@param int $instanceid instance id of guest enrolment plugin.
@return array warnings and instance information.
@since Moodle 3.1
Return guest enrolment instance information .