how to fix this error?

[eluser]chmod[/eluser]
but I input username like:free_spy, and password:MYPASS
the table name will be something.Because:

Code:

function Tablination($username){
        $md5Username = md5($username);
        $lastTableName = mb_substr($md5Username,0,1);
        return $lastTableName;
    }

     function getMemberTableName($username){
        $tablename = $this->lang->line('table_name_member_pre');
        $tablename .= $this->tablination_model->Tablination($username);
        if (!empty($tablename)){
            return $tablename;
        }else{
            return false;
        }
     }

the table name will return a value.

do you thing so?