mysql_num_rows() expects parameter 1 to be resource, string given in

Question

I have read through many other threads about this exact problem, but i for some reason can not solve my problem. Really need some help.

if (!$username||!$passwo         


        

Answer 1

Change:

$check = mysql_query("SELECT * FROM Test WHERE username = '$username'");

to

$check = mysql_query("SELECT * FROM Test WHERE username = '$username'") or die(mysql_error());

And you will see any potential errors that happens in the query.

Also, I would highly recomend using either PDO or Mysqli instead of mysql functions, as they are deprecated and will be removed in future php versions.