Moosh\Command\Moodle23\User\UserList::execute PHP Method

    public function execute()
    {
        global $DB, $CFG;
        require_once $CFG->dirroot . '/lib/accesslib.php';
        require_once $CFG->dirroot . '/enrol/locallib.php';
        require_once $CFG->dirroot . '/group/lib.php';
        @error_reporting(E_ALL | E_STRICT);
        @ini_set('display_errors', '1');
        $options = $this->expandedOptions;
        $limit_from = 0;
        if (($options['course-inactive'] || $options['course-role']) && !$options['course']) {
            cli_error("You must provide --course if --course-inactive or --course-role is used.");
        }
        if (count($this->arguments) == 0) {
            $users = "SELECT * FROM {user}";
            $limit_to = 100;
        } else {
            $users = "SELECT * FROM {user} WHERE " . $this->arguments[0];
            $limit_to = 0;
            $sort = "id";
            if ($options['sort']) {
                if ($options['sort'] == 'username' || $options['sort'] == 'email' || $options['sort'] == 'idnumber') {
                    $sort = $options['sort'];
                } else {
                    echo "Invalid sorting option. Use 'username', 'email' or 'idnumber'.\n";
                }
            }
            $dir = 'ASC';
            if ($options['descending']) {
                $dir = 'DESC';
            }
            $users .= " ORDER BY {$sort} {$dir}";
            if ($options['limit'] && preg_match('/^\\d+$/', $options['limit'])) {
                $limit_to = $options['limit'];
            }
        }
        if ($options['course']) {
            $users = $DB->get_records_sql($users, array('deleted' => 0, 'suspended' => 0));
        } else {
            $users = $DB->get_records_sql($users, $params = null, $limit_from, $limit_to);
        }
        // Possibly extra filtering.
        $extralimit = false;
        if ($options['course']) {
            $context = \context_course::instance($options['course']);
            $enrolledusers = get_enrolled_users($context);
            $extralimit = array_combine(array_keys($enrolledusers), array_keys($enrolledusers));
        }
        if ($options['course-inactive']) {
            foreach ($extralimit as $userid => $v) {
                $lastaccessexists = $DB->record_exists('user_lastaccess', array('courseid' => $options['course'], 'userid' => $userid));
                if ($lastaccessexists) {
                    unset($extralimit[$userid]);
                }
            }
        }
        if ($options['course-role']) {
            $role = $DB->get_record('role', array('shortname' => $options['course-role']), '*', MUST_EXIST);
            $roleusers = array_keys(get_role_users($role->id, $context));
            $roleusers = array_combine($roleusers, $roleusers);
            $extralimit = array_intersect_key($roleusers, $extralimit);
        }
        if ($extralimit !== false) {
            $users = array_intersect_key($users, $extralimit);
        }
        // Apply original $options['limit'] at the end.
        if ($options['limit']) {
            $users = array_splice($users, 0, $options['limit']);
        }
        foreach ($users as $user) {
            if ($options['id']) {
                echo "{$user->id} \n";
                continue;
            }
            $to_print = $user->username . " ({$user->id}), " . $user->email . ", ";
            echo $to_print . "\n";
        }
    }