function deleteUser($i_id)
{
    global $g_db, $srv_settings;
    if ($i_id > SYSTEM_USER_MAX_INDEX) {
        $g_db->Execute("DELETE FROM " . $srv_settings['table_prefix'] . "tests_attempts WHERE id=" . $i_id);
        $i_rSet1 = $g_db->Execute("SELECT resultid FROM " . $srv_settings['table_prefix'] . "results WHERE id=" . $i_id);
        if (!$i_rSet1) {
            showDBError(__FILE__, 1);
        } else {
            while (!$i_rSet1->EOF) {
                deleteResultRecord($i_rSet1->fields["resultid"]);
                $i_rSet1->MoveNext();
            }
            $i_rSet1->Close();
        }
        if ($g_db->Execute("DELETE FROM " . $srv_settings['table_prefix'] . "results WHERE id=" . $i_id) === false) {
            showDBError(__FILE__, 2);
        }
        //9917//9917
        if ($g_db->Execute("DELETE FROM " . $srv_settings['table_prefix'] . "groups_users WHERE id=" . $i_id) === false) {
            showDBError(__FILE__, 3);
        }
        if ($g_db->Execute("DELETE FROM " . $srv_settings['table_prefix'] . "users WHERE id=" . $i_id) === false) {
            showDBError(__FILE__, 4);
        }
    }
}
<?php

if (isset($_POST["box_results"])) {
    foreach ($_POST["box_results"] as $f_resultid) {
        deleteResultRecord((int) $f_resultid);
    }
} else {
    $f_resultid = (int) readGetVar('resultid');
    deleteResultRecord($f_resultid);
}
gotoLocation('reports-manager.php' . getURLAddon('?action=', array('action', 'resultid', 'confirmed')));