Make PDO decorator extends PDO

[Grafikart]

This would allow the decorator to be injected to replace the original PDO object without breaking typehinting.

public function myMethod(\PDO $pdo) {

}

[sergeyklay]

@fabfuel Could you please take a look

[fabfuel]

With this change, it wouldn't be a decorator anymore.
I see how this would make things easier, but this class wouldn't make too much sense, if you extend PDO but still have to inject a PDO instance. Sorry, I can't merge it like this.

[mschop]

The real problem is, that PHP has not provided an PDOInterface. A real decorator does implement the interface for being compatible with existing implementations. This is not possible here.

Therefore I would recomment creating an interface "PDOInterface". Then one can is able to create real decorators.

class ProfilingPDO implements PDOInterface
{
   ...
}

class MyPDO extends PDO implements PDOInterface
{
   ...
}