Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resourc

[MDanz]

i don't know where i made a mistake?

 

	mysql_connect("localhost", "Master", "password");
mysql_select_db("db");

$queryz= mysql_query("SELECT * FROM new WHERE topicid=$number")or die(mysql_error());
$table2 = mysql_num_rows(mysql_query($queryz));

if($table2==0)

{

$block= "3.jpg";


}
else {
$block = ".jpg";

}

[F1Fan]

Try this:

 

   mysql_connect("localhost", "Master", "password");
mysql_select_db("db");
   
$queryz= mysql_query("SELECT * FROM new WHERE topicid=$number")or die(mysql_error());
$table2 = mysql_num_rows($queryz);

if($table2==0)

{

$block= "3.jpg";


}
else {
$block = ".jpg";

}