Alternative for mysql_num_rows using PDO

Question

Right now I have a PHP file that does a MYSQL query and then counts rows like this:

$count=mysql_num_rows($result);


if ($count == 1) {
    $message = array         


        

Answer 1

$stmt = $db->query('SELECT * FROM table');  
$row_count = $stmt->rowCount();  
echo $row_count.' rows selected';