PHP中的异常处理

Question

I try throw exception when there is no result in database, here is code:

try {
    if (!$stmt->execute()) {
       throw new ErrorExeption('there is no row with that id');
    }
} catch (ErrorExeption $e) {
    echo $e->getMessage();
}

So, when I paste wron Id I cant see the error message. What I am doing wrong?

Answer 1

Consider this:

try {
    $stmt->execute();

    if (!$row = $stmt->fetch(PDO::FETCH_ASSOC)) {
        throw new ErrorExeption('there is no row with that id');
    }
} catch (PDOException $e) {
    echo $e->getMessage();
} catch (ErrorExeption $e) {
    echo $e->getMessage();
}