How to get the result of a select count(*) query in PHP?

Question

I have this query to use in PHP:

mysql_query(\"select count(*) from registeredUsers where email=\".$_SESSION[\"username\"]);

When I use e

Answer 1

mysql_query returns a result resource. You can read the result with mysql_result

$res = mysql_query("select count(*) from registeredUsers where email='".mysql_real_escape_string($_SESSION["username"])."'");
echo mysql_result($res,0);