Re: query problem in php

[putraikim_n9 den]

Warning: mysql_db_query(): supplied argument is not a valid MySQL result resource....

why i get this error?

somebody help me please...

thanks...

<? session_start();

if (isset($HTTP_POST_VARS['bio_notentera']) && isset($HTTP_POST_VARS['bio_pass']))
{
// if the user has just tried to log on
$bio_notentera = $HTTP_POST_VARS['bio_notentera'];
$bio_pass = $HTTP_POST_VARS['bio_pass'];

include 'dbase.php';

$query = "SELECT * FROM biodata
WHERE bio_notentera = '$bio_notentera'
AND bio_pass = '$bio_pass'
";

$result = mysql_db_query($db,$query);


if ( mysql_num_rows($result) > 0 ) <--- (((this problem)))
{
// if they are in the database register the user id
$HTTP_SESSION_VARS['valid_admin'] = $bio_notentera;


}



if ( isset($HTTP_SESSION_VARS['valid_admin']))



{
echo "<script language='Javascript'>
location.href='maklumat_diri4.php?bio_notentera=$bio_notentera';
</script>";
}


}


?>