pdo :: query fetch_class：如何检索单个结果对象？

Question

I have a DB table Entity and a corresponding DTO class Entity (no constructor arguments).

When I do this:

$entity=$connection->query("Select * FROM Entity WHERE id='1'",
    PDO::FETCH_CLASS,
    'Entity',
    NULL);

Then $entity is a PDOStatement containing one object of class Entity .

How can I retrieve this one Entity object without looping over $entity with a foreach ?

PDOStatment:fetchObject didn't seem like a good solution, because it's going to map the Entity object in the PDOStatement on a new Entity object.

Answer 1

I believe you can do

$entity = $connection->query("Select * FROM Entity WHERE id='1'",
    PDO::FETCH_CLASS,
    'Entity',
    NULL)->fetch(PDO::FETCH_CLASS);

I've never tried using the query method like that before, so this may not work.