用zerofill查询Mysqli

Hello stackoverflow community, I need help with this mysqli query. My auto increase column in database is ZERO-FILL element for example 00001 so when I try to query like this:

$stmt = $mysqli->query("UPDATE ".$db_table_prefix."korteles 
    SET
    vardas = '".$this->clean_k_name."',
    pavard = ".$this->clean_k_surname.",
    WHERE korteles_nr = '00001'");

And I get error:

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'WHERE korteles_nr = 00001' at line 18

I was searching Internet for solving this problem. But can't find so please help!

Query should be like this:-

$stmt = $mysqli->query("UPDATE ".$db_table_prefix."korteles 
    SET
    vardas = '$this->clean_k_name',
    pavard = '$this->clean_k_surname' 
    WHERE 
      korteles_nr = '00001'");

You have to remove the comma after $this->clean_k_surname variable