The warning means the query failed in mysql. Perhaps it failed in the
connect. You do not need the number of rows.
To determine what the problem is, ALWAYS include a die() clause:
$db = mysql_connect("localhost", "", "") or die("Error: ".mysql_error());
mysql_select_db("employee",$db) or die("E
This error comes when trying to fetch data from a result set but there is no such
because there was a problem with the query.
Try var_dump($res) and you will see - 0. 0 is not a valid number for resource of type
mysql or any other resource. To prevent this
every time when using a resource identi
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