PDO::FETCH_CLASS with multiple classes

Question

I am trying to turn an query result into classes.

$result->setFetchMode(PDO::FETCH_CLASS, \'myclass\', array());

This works quite well howev

Answer 1

I would not use PDO::FETCH_CLASS for that. You can change your SQL to return class name based on value of age

SELECT 
id,
name,
age,
CASE WHEN age < 21 THEN 'child'
ELSE 'adult' END
AS class_name
FROM SOME_TABLE";

Then use your PDO::FETCH_ASSOC as fetch type
Then when you loop over your results
you can easily instantiave class based on
$result['class_name'] like this:
$class = $result['class_name'];
$obj = new $class;