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

The count query will always return a value, which is 0 if no records are returned, or an integer above 0 if records match it.

It should at least be printing out 0, the query you posted means:

Get the number of records where the email address is equal to the session username

This might not make sense, do you mean to do where username = ".$_SESSION["username"] or something similar?