need help with implode function

[scatfly]

I have a set of values that were put into a form and am now using this to put into a database. this is my error:

"Warning: implode() [function.implode]: Bad arguments. in /home/xxxxxx/public_html/login.php on line 177
Couldn't execute insert query."

 $today = date("Y-m-d");
        $fields_str = implode(",", $fields);
        $values_str = implode('","',$values);  <=line177
        $fields_str .=",createdate";
        $values_str .='"'.",".'"'.$today;
        $fields_str .=",password";
        $values_str .= '"'.","."md5"."('".$password."')";
        $sql = "INSERT INTO member ";
        $sql .= "(".$fields_str.")";
        $sql .= " VALUES ";
        $sql .= "(".'"'.$values_str.")";
        $result = mysql_query($sql) 
                or die("Couldn't execute insert query.");
        $_SESSION['auth']="yes";                      

        $_SESSION['logname'] = $loginname;  

[NogDog]

My guess would be that either $values is not set at all or else it is not an array. For debugging, you might want to put in a var_dump($values) at that point to see what (if anything) it actually is.

[scatfly]

it is an array. do you have any other ideas?

i am trying to convert the array of field names to a string that contains the values seperated by commas and enclosed in quotes.