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<?php
if (is_file("../lib/sql/drivers/$config[sql_type]/functions.php"))
        include_once("../lib/sql/drivers/$config[sql_type]/functions.php");
else{
        echo "<b>Could not include SQL library</b><br>\n";
        exit();
}
$link = da_sql_pconnect($config);
if ($link){
        if (isset($del_members)){
                foreach ($del_members as $del){
                        $del = da_sql_escape_string($link, $del);
                        $res = da_sql_query($link,$config,
                        "DELETE FROM $config[sql_usergroup_table] WHERE username = '$del' AND groupname = '$login';");
                        if (!$res)
                                echo "<b>Could not delete user $del from group: " . da_sql_error($link,$config) . "</b><br>\n";
                }
        }
        if ($new_members != ''){
                $Members = preg_split("/[\n\s]+/",$new_members,-1,PREG_SPLIT_NO_EMPTY);
                if (!empty($Members)){
                        foreach ($Members as $new_member){
                                $new_member = da_sql_escape_string($link, $new_member);
                                $res = da_sql_query($link,$config,
                                "SELECT username FROM $config[sql_usergroup_table] WHERE
                                username = '$new_member' AND groupname = '$login';");
                                if ($res){
                                        if (da_sql_num_rows($res,$config))
                                                echo "<b>User $new_member already is a member of the group</b><br>\n";
                                        else{
                                                $res = da_sql_query($link,$config,
                                                "INSERT INTO $config[sql_usergroup_table] (groupname,username)
                                                VALUES ('$login','$new_member');");
                                                if (!$res)
                                                        echo "<b>Error while adding user $new_member to group: " . da_sql_error($link,$config) . "</b><br>\n";
                                        }
                                }
                                else
                                        echo "<b>Could not add new member $new_member: " . da_sql_error($link,$config) . "</b><br>\n";
                        }
                }
        }
}
else
        echo "<b>Could not connect to SQL database</b><br>\n";
?>