Hi! I like to insert null values with placeholders in ibase_query. But it doesn't work. $stmt = "insert into category_prop \n". "(id, category_id, category_prop_type_id, asinteger, asfloat, ascurrency, asstring) \n". "values (gen_id(gen_category_prop_id,1),1097,109,?,?,?,?)"; $asinteger = null; $asfloat = 2.5; $ascurrency = 3; $asstring = "apple"; $sth = ibase_query($dbh, $stmt, $asinteger, $asfloat, $ascurrency, $asstring); This statement insert '0' instead null. Why? Best Regards, Kiss Marton [EMAIL PROTECTED] -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]