Question

If I have a query,

SELECT (...) FROM User WHERE Username = (...) AND Password = (...);

and the user types in an invalid Username is there a way to pick up that it was specifically the Username that was incorrect?

This is so that I can give more specific error messages to the user, like “User does not exist” etc…

Answer 1

SELECT COUNT(*) AS `count` FROM `User` WHERE `Username` = ...;

if( $result['count'] < 1 )
{
  // no user
}

// repeat for pass.